tracern.¹

Brit.

/ˈtreɪsə/, U.S.

/ˈtreɪsər/

Etymology: < trace v.¹ + -er suffix¹.

One who or that which traces.

1. One who follows the footprints or track of anything; one who tracks, investigates, or searches out; spec. one whose business is the tracing of missing persons, property, parcels, letters, etc.

ΘΚΠ

the world > food and drink > hunting > hunter > [noun] > trailer

tracer1552

trailer1590

spoorer1850

puggee1879

the mind > attention and judgement > enquiry > investigation, inspection > [noun] > person conducting

searchera1382

inseerc1438

intracer?a1475

inquisitor?1504

investigator1538

peruser1549

tracer1552

scrutineer1557

examinant1587

revisitor1594

examiner?1608

examinator1612

researcher1615

indagator1620

ferret1629

pryer1674

probator1691

disquisitor1766

grubber1776

prober1777

grubbler1813

detective1850

expiscator1882

the world > movement > progressive motion > order of movement > following behind > [noun] > following track or trail > one who

tracer1552

tracker1617

puggee1823

spoorer1850

black tracker1862

the world > action or operation > endeavour > searching or seeking > [noun] > searcher or seeker > professional tracer of property or persons

tracer1888

1552 R. Huloet Abcedarium Anglico Latinum Tracer, uestigiator.

1611 J. Florio Queen Anna's New World of Words Rintracciatore, a tracer. Also a sifter out of secrets, a narrow searcher.

1627 G. Hakewill Apologie iii. i. 152 Plyny..a diligent and curious tracer of the prints of Natures footsteps.

1629 H. Burton Truth's Triumph 210 The timorous..hare..to deceiue her pursuers or tracers, makes many doubles.

1716 Hesperi-neso-graphia i. 6 To be performed by Some Tracer of Antiquity.

1866 Intellectual Observer No. 56. 99 Some deep-thinking tracer of structural relations.

1888 Sci. Amer. 6 Oct. 217/1 Nearly all the great [rail] roads employ a corps of what are known as ‘lost car searchers’ or ‘tracers’.

1902 Daily Chron. 18 June 10/7 Furniture (Hire).—Wanted immediately smart man as collector and tracer; must have good knowledge of the hire trade.

1904 Daily Chron. 22 Aug. 4/5 The various postal organisations of sorters, telegraphists, postmen, linemen, tracers, &c.

2. A thing used in tracing; spec.:

a. Anatomy. A slender probe used in tracing the course of a nerve or vessel.

ΘΚΠ

the world > health and disease > healing > medical appliances or equipment > surgical instruments > [noun] > probe or sound

tenta1400

probe?a1425

search?a1425

sequere mea1425

searcher?c1425

searching iron1477

prove?1541

privet1598

proof1611

style1631

seeker1658

searching instrument1663

stylet1697

stiletto1699

breast-probe1739

sound1797

sounder1875

tracer1882

the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > by physical means > of specific parts or using specific instruments > specific examining instruments

speculum1598

diopter1706

otoscope1853

stomatoscope1853

laparoscope1855

cardioscope1856

sphygmoscope1856

stereoscope1857

laryngoscope1860

pharyngoscope1861

rhinoscope1861

autolaryngoscope1863

vaginoscope1863

oesophagoscope1868

photophore1871

rectoscope1871

endoscope1872

autoscope1873

glottiscope1876

polyscope1878

duck-bill speculum1879

tracer1882

diaphanoscope1883

gastroscope1888

cystoscope1889

kinetoskotoscope1896

photoscope1896

proctoscope1896

bronchoscope1899

sigmoidoscope1900

arthroscope1925

peritoneoscope1939

toposcope1951

fibrescope1954

mediastinoscope1966

fetoscope1968

angioscope1980

1882 B. G. Wilder & S. H. Gage Anat. Technol. Domest. Cat 72 The tracer is apparently similar to the ‘seeker’ of the English anatomists.

1899 New Sydenham Soc. Lexicon Tracer, an instrument used in dissection for isolating nerves or vessels by teasing.

b. In U.S. Railway or Postal usage: an inquiry form forwarded from point to point on which the successive movements of a missing car, parcel, or article have to be recorded.

ΚΠ

1899 Westm. Gaz. 17 June 7/2 The ‘tracer’ had chased the ore into the master-mechanic's possession.

c. A substance (as a radioactive isotope or a dye) with distinctive properties that is introduced into a system so that its subsequent distribution may be readily followed. Frequently attributive.

ΘΚΠ

the mind > attention and judgement > discovery > instrument for detection > [noun] > substance used as tracer

tracer1938

radiotracer1949

1938 Encycl. Brit. Bk. of Year 320/2 The use of deuterium as a tracer in biochemical studies has been important.

1946 Nature 12 Oct. 527/1 The attempt..to correlate by radioactive-tracer techniques the localization of heavy metals in the body and their chemotherapeutic activity.

1952 New Biol. 13 63 One method..involves injecting into such mammals as sheep and rats a very minute dose (called a ‘tracer dose’) of the isotope.

1960 P. Daudel tr. Eisner Radioactive Tracers in Chem. & Industry v. 164 The Russian workers..have investigated the action of modifying agents in the extraction..of metals..using radioactive tracers.

1962 O. Hockwin in A. Pirie Lens Metabolism 423 We investigated the metabolism of nucleotides and carbohydrates by ion exchange using labelled inorganic phosphate as a tracer.

1963 G. L. Pickard Descriptive Physical Oceanogr. vi. 81 Radioactive materials seem attractive as tracers of water movement... A very convenient artificial tracer is the red dye rhodamine-B.

1979 Sci. Amer. Apr. 130/1 (advt.) Using beryllium-7 as a tracer of stratospheric ozone, our scientists found that such ozone is distributed throughout high pressure weather systems.

d. Other uses.

ΚΠ

1971 Physics Bull. Jan. 22/2 Satellites also have their use in the determination of wind. A tracer moving with the wind and identifiable from the satellite is required; there are two suitable tracers, cloud elements and balloons.

1979 Nature 26 July 299/2 Sunspots have long been used as tracers to determine the rotation rate of the Sun.

3. gen. One who or that which traces lines or makes tracings; spec.:

a. Military. At a siege: one who traces parallels; a member of a tracing party.

ΘΚΠ

society > armed hostility > warrior > soldier > soldier with special duty > [noun] > tracer in siege

tracer1859

1859 F. A. Griffiths Artillerist's Man. (1862) 250 Tracers [of a siege-battery]—1 non-commissioned officer, and 2 privates.

Thesaurus »

b. One whose work it is to trace copies of drawings or plans.

c. One whose business is the tracing of patterns for embroidery.

ΘΚΠ

the world > textiles and clothing > textiles > textile manufacture > manufacture textile fabric or that which consists of > sewing or ornamenting textile fabric > [noun] > embroidery or ornamental sewing > one who traces patterns for embroidery

tracer1908

1908 Daily Chron. 12 June 9/6 Tracer for embroidery, female; also cutters wanted.

d. A tool for marking out designs or patterns; also, a chasing or engraving tool.

ΘΚΠ

society > occupation and work > equipment > equipment for marking out work > [noun] > sharp

tracer1756

scriber1781

scribe1812

tracing-point1815

scrieve1828

scribe awl1848

striking knife1901

1541 in J. Stuart Extracts Council Reg. Aberdeen (1844) I. 176 Item, ane traschor, ane stuffin sclyise.]

1756 G. Smith tr. Laboratory (new ed.) II. ii. 34 Trace the out-line with a brass bodkin, or a tracer made on purpose, of a piece of wire of iron or brass.

?1790 J. Imison Curious & Misc. Articles (new ed.) 29 in School of Arts (ed. 2) With a little pointed tracer or burnisher go over your strokes which you drew upon the oiled paper, and you shall have the same very neatly and exactly drawn upon the white paper.

1825 ‘J. Nicholson’ Operative Mechanic 317 The frame carrying the dividing-point or tracer, is made to slide on the frame which carries the endless-screw to any distance.

1844 Civil Engineer & Architect's Jrnl. 7 187/1 A solid cone revolving on its axis, during the perpendicular descent of a tracer.

1852 Trans. Soc. Arts 61 134 The cutters and tracers used together should be of the same size.

1890 W. J. Gordon Foundry 174 At last the film of putty with which the flat plate was spread to show the tracer's progress is scored along every line. The roller is finished.

1909 Webster's New Internat. Dict. Eng. Lang. Tracer,..b. any of several chasing tools for ornamenting in metal, esp. for making and finishing corners, borders, and the like.

e. A stylus for tracing on copying paper; also, the writing instrument of a pantograph or of a self-recording machine.

ΘΚΠ

society > communication > record > written record > [noun] > tracing point used to produce

stylus1875

tracer1878

society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments

sweep1680

bow1706

trammel1725

stock1815

cyclograph1823

trainer1848

set square1854

stereograph1877

tracer1878

philograph1892

1878 G. B. Prescott Speaking Telephone (1879) 297 The lower diagram is what the tracer wrote when the stanza was repeated.

f. A mechanical contrivance for making tracings on a larger or smaller scale.

ΘΚΠ

society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing

parallelogramc1656

pantograph1723

pantographer1750

reducing compass1778

tracer1812

eidograph1828

reducing machine1848

reduction compass1853

planigraph1877

tracing-instrument1877

1812 T. J. Hogg Life Shelley (1858) II. 150 The tracers of a circle.

g. Ice-cutting: (see quot. 1884).

ΘΚΠ

society > occupation and work > equipment > equipment for marking out work > [noun] > sharp > for marking ice

tracer1884

1884 Cassell's Family Mag. Feb. 188/1 There are..tracers, or hand-ploughs, to mark out the areas to be cut by grooves [in ice].

4. Bullets or shells whose course is made visible by the trail that they emit during flight; occasionally in singular sense. Originally: the trail produced by these.

ΘΚΠ

society > armed hostility > military equipment > weapon > missile > ammunition for firearms > [noun] > bullet or shell > type of

tracer1910

mothball1943

1910 Blackwood's Mag. July 6/2 The projectiles of airship guns may possibly give out a jet of flame and a smoke ‘tracer’ on discharge.

1922 Encycl. Brit. XXX. 120/2 For night use, the tracer shows a luminous spark, for day use the tracer gives a smoky trail.

1937 Times 16 Apr. 8/6 This was a most spectacular demonstration, the machine-guns using tracer and the new smoke observation projectiles.

1957 P. Kemp Mine were of Trouble ix. 173 A minute later bursts of tracer flew over us from high ground on our right.

1967 Boston Sunday Globe 23 Apr. 16/4 Helicopter gunships tried to protect the other busy helicopters by circling in pairs, one with a light on to draw a stream of enemy tracers.

1970 L. Deighton Bomber xxiii. 335 He was in the nose watching ropes of red and yellow tracer curve towards them and fall away.

1983 ‘W. Haggard’ Heirloom xv. 169 He'd seen..appeals for death..that airman with tracer burning his lungs out.

Compounds

attributive and in other combinations, esp. as tracer bullet, tracer shell.

ΚΠ

1916 ‘Taffrail’ Pincher Martin xv. 278 A thin trail of dim light climbed skywards in a curve as a tracer shell hurtled its way through the air.

1918 ‘B. Cable’ Air Men o' War 22 Tracer bullets emit smoke and flame to allow the shooter to follow their flight.

1928 C. F. S. Gamble Story N. Sea Air Station xii. 179 When about 1,500 feet below the airship, he fired two trays of explosive and tracer ammunition from his Lewis gun into her.

1943 Sun (Baltimore) 3 Aug. 4/6 During this exchange of fire, a Japanese plane had managed to get on the tail of Captain Walter's Warhawk. Tracer bullets were flying past him, but none hit.

1944 Return to Attack (Army Board, N.Z.) 18/1 The flash and crack of the high-velocity tank guns, the low parabola of the tracer shell.

1969 G. MacBeth War Quartet 40 Tracer-filled In open air-space.

1973 M. Woodhouse Blue Bone xii. 135 A machine-gun stammered and tracer bullets began to draw graceful curves in space.

1976 A. White Long Silence vii. 58 I saw a lone fighter come in from the west... Sudden streams of tracer fire came from him.

Draft additions 1993

A device which is designed to transmit a signal and which can therefore be traced when attached to a moving vehicle, etc.

ΘΚΠ

the mind > attention and judgement > discovery > instrument for detection > [noun] > electronic

metal detector1924

tracer1972

1972 K. Bonfiglioli Don't point that Thing at Me xii. 95 The tiny transistorised tracer-beacon..was magnetised fiercely to the underside of my right-hand front mudguard.

1984 J. Savarin Wolfrun xiii. 168 I was asked to plant a tracer on the car.

1989 Judge Dredd No. 2. 30/2 He did this by carrying a tracer, but its signal was blocked by the rock walls of the Judda base within Ayers Rock.

This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2022).

单词	tracer
释义	tracern.¹ Brit. /ˈtreɪsə/, U.S. /ˈtreɪsər/ Etymology: < trace v.¹ + -er suffix¹. One who or that which traces. 1. One who follows the footprints or track of anything; one who tracks, investigates, or searches out; spec. one whose business is the tracing of missing persons, property, parcels, letters, etc. ΘΚΠ the world > food and drink > hunting > hunter > [noun] > trailer tracer1552 trailer1590 spoorer1850 puggee1879 the mind > attention and judgement > enquiry > investigation, inspection > [noun] > person conducting searchera1382 inseerc1438 intracer?a1475 inquisitor?1504 investigator1538 peruser1549 tracer1552 scrutineer1557 examinant1587 revisitor1594 examiner?1608 examinator1612 researcher1615 indagator1620 ferret1629 pryer1674 probator1691 disquisitor1766 grubber1776 prober1777 grubbler1813 detective1850 expiscator1882 the world > movement > progressive motion > order of movement > following behind > [noun] > following track or trail > one who tracer1552 tracker1617 puggee1823 spoorer1850 black tracker1862 the world > action or operation > endeavour > searching or seeking > [noun] > searcher or seeker > professional tracer of property or persons tracer1888 1552 R. Huloet Abcedarium Anglico Latinum Tracer, uestigiator. 1611 J. Florio Queen Anna's New World of Words Rintracciatore, a tracer. Also a sifter out of secrets, a narrow searcher. 1627 G. Hakewill Apologie iii. i. 152 Plyny..a diligent and curious tracer of the prints of Natures footsteps. 1629 H. Burton Truth's Triumph 210 The timorous..hare..to deceiue her pursuers or tracers, makes many doubles. 1716 Hesperi-neso-graphia i. 6 To be performed by Some Tracer of Antiquity. 1866 Intellectual Observer No. 56. 99 Some deep-thinking tracer of structural relations. 1888 Sci. Amer. 6 Oct. 217/1 Nearly all the great [rail] roads employ a corps of what are known as ‘lost car searchers’ or ‘tracers’. 1902 Daily Chron. 18 June 10/7 Furniture (Hire).—Wanted immediately smart man as collector and tracer; must have good knowledge of the hire trade. 1904 Daily Chron. 22 Aug. 4/5 The various postal organisations of sorters, telegraphists, postmen, linemen, tracers, &c. 2. A thing used in tracing; spec.: a. Anatomy. A slender probe used in tracing the course of a nerve or vessel. ΘΚΠ the world > health and disease > healing > medical appliances or equipment > surgical instruments > [noun] > probe or sound tenta1400 probe?a1425 search?a1425 sequere mea1425 searcher?c1425 searching iron1477 prove?1541 privet1598 proof1611 style1631 seeker1658 searching instrument1663 stylet1697 stiletto1699 breast-probe1739 sound1797 sounder1875 tracer1882 the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > by physical means > of specific parts or using specific instruments > specific examining instruments speculum1598 diopter1706 otoscope1853 stomatoscope1853 laparoscope1855 cardioscope1856 sphygmoscope1856 stereoscope1857 laryngoscope1860 pharyngoscope1861 rhinoscope1861 autolaryngoscope1863 vaginoscope1863 oesophagoscope1868 photophore1871 rectoscope1871 endoscope1872 autoscope1873 glottiscope1876 polyscope1878 duck-bill speculum1879 tracer1882 diaphanoscope1883 gastroscope1888 cystoscope1889 kinetoskotoscope1896 photoscope1896 proctoscope1896 bronchoscope1899 sigmoidoscope1900 arthroscope1925 peritoneoscope1939 toposcope1951 fibrescope1954 mediastinoscope1966 fetoscope1968 angioscope1980 1882 B. G. Wilder & S. H. Gage Anat. Technol. Domest. Cat 72 The tracer is apparently similar to the ‘seeker’ of the English anatomists. 1899 New Sydenham Soc. Lexicon Tracer, an instrument used in dissection for isolating nerves or vessels by teasing. b. In U.S. Railway or Postal usage: an inquiry form forwarded from point to point on which the successive movements of a missing car, parcel, or article have to be recorded. ΚΠ 1899 Westm. Gaz. 17 June 7/2 The ‘tracer’ had chased the ore into the master-mechanic's possession. c. A substance (as a radioactive isotope or a dye) with distinctive properties that is introduced into a system so that its subsequent distribution may be readily followed. Frequently attributive. ΘΚΠ the mind > attention and judgement > discovery > instrument for detection > [noun] > substance used as tracer tracer1938 radiotracer1949 1938 Encycl. Brit. Bk. of Year 320/2 The use of deuterium as a tracer in biochemical studies has been important. 1946 Nature 12 Oct. 527/1 The attempt..to correlate by radioactive-tracer techniques the localization of heavy metals in the body and their chemotherapeutic activity. 1952 New Biol. 13 63 One method..involves injecting into such mammals as sheep and rats a very minute dose (called a ‘tracer dose’) of the isotope. 1960 P. Daudel tr. Eisner Radioactive Tracers in Chem. & Industry v. 164 The Russian workers..have investigated the action of modifying agents in the extraction..of metals..using radioactive tracers. 1962 O. Hockwin in A. Pirie Lens Metabolism 423 We investigated the metabolism of nucleotides and carbohydrates by ion exchange using labelled inorganic phosphate as a tracer. 1963 G. L. Pickard Descriptive Physical Oceanogr. vi. 81 Radioactive materials seem attractive as tracers of water movement... A very convenient artificial tracer is the red dye rhodamine-B. 1979 Sci. Amer. Apr. 130/1 (advt.) Using beryllium-7 as a tracer of stratospheric ozone, our scientists found that such ozone is distributed throughout high pressure weather systems. d. Other uses. ΚΠ 1971 Physics Bull. Jan. 22/2 Satellites also have their use in the determination of wind. A tracer moving with the wind and identifiable from the satellite is required; there are two suitable tracers, cloud elements and balloons. 1979 Nature 26 July 299/2 Sunspots have long been used as tracers to determine the rotation rate of the Sun. 3. gen. One who or that which traces lines or makes tracings; spec.: a. Military. At a siege: one who traces parallels; a member of a tracing party. ΘΚΠ society > armed hostility > warrior > soldier > soldier with special duty > [noun] > tracer in siege tracer1859 1859 F. A. Griffiths Artillerist's Man. (1862) 250 Tracers [of a siege-battery]—1 non-commissioned officer, and 2 privates. Thesaurus » b. One whose work it is to trace copies of drawings or plans. c. One whose business is the tracing of patterns for embroidery. ΘΚΠ the world > textiles and clothing > textiles > textile manufacture > manufacture textile fabric or that which consists of > sewing or ornamenting textile fabric > [noun] > embroidery or ornamental sewing > one who traces patterns for embroidery tracer1908 1908 Daily Chron. 12 June 9/6 Tracer for embroidery, female; also cutters wanted. d. A tool for marking out designs or patterns; also, a chasing or engraving tool. ΘΚΠ society > occupation and work > equipment > equipment for marking out work > [noun] > sharp tracer1756 scriber1781 scribe1812 tracing-point1815 scrieve1828 scribe awl1848 striking knife1901 1541 in J. Stuart Extracts Council Reg. Aberdeen (1844) I. 176 Item, ane traschor, ane stuffin sclyise.] 1756 G. Smith tr. Laboratory (new ed.) II. ii. 34 Trace the out-line with a brass bodkin, or a tracer made on purpose, of a piece of wire of iron or brass. ?1790 J. Imison Curious & Misc. Articles (new ed.) 29 in School of Arts (ed. 2) With a little pointed tracer or burnisher go over your strokes which you drew upon the oiled paper, and you shall have the same very neatly and exactly drawn upon the white paper. 1825 ‘J. Nicholson’ Operative Mechanic 317 The frame carrying the dividing-point or tracer, is made to slide on the frame which carries the endless-screw to any distance. 1844 Civil Engineer & Architect's Jrnl. 7 187/1 A solid cone revolving on its axis, during the perpendicular descent of a tracer. 1852 Trans. Soc. Arts 61 134 The cutters and tracers used together should be of the same size. 1890 W. J. Gordon Foundry 174 At last the film of putty with which the flat plate was spread to show the tracer's progress is scored along every line. The roller is finished. 1909 Webster's New Internat. Dict. Eng. Lang. Tracer,..b. any of several chasing tools for ornamenting in metal, esp. for making and finishing corners, borders, and the like. e. A stylus for tracing on copying paper; also, the writing instrument of a pantograph or of a self-recording machine. ΘΚΠ society > communication > record > written record > [noun] > tracing point used to produce stylus1875 tracer1878 society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments sweep1680 bow1706 trammel1725 stock1815 cyclograph1823 trainer1848 set square1854 stereograph1877 tracer1878 philograph1892 1878 G. B. Prescott Speaking Telephone (1879) 297 The lower diagram is what the tracer wrote when the stanza was repeated. f. A mechanical contrivance for making tracings on a larger or smaller scale. ΘΚΠ society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing parallelogramc1656 pantograph1723 pantographer1750 reducing compass1778 tracer1812 eidograph1828 reducing machine1848 reduction compass1853 planigraph1877 tracing-instrument1877 1812 T. J. Hogg Life Shelley (1858) II. 150 The tracers of a circle. g. Ice-cutting: (see quot. 1884). ΘΚΠ society > occupation and work > equipment > equipment for marking out work > [noun] > sharp > for marking ice tracer1884 1884 Cassell's Family Mag. Feb. 188/1 There are..tracers, or hand-ploughs, to mark out the areas to be cut by grooves [in ice]. 4. Bullets or shells whose course is made visible by the trail that they emit during flight; occasionally in singular sense. Originally: the trail produced by these. ΘΚΠ society > armed hostility > military equipment > weapon > missile > ammunition for firearms > [noun] > bullet or shell > type of tracer1910 mothball1943 1910 Blackwood's Mag. July 6/2 The projectiles of airship guns may possibly give out a jet of flame and a smoke ‘tracer’ on discharge. 1922 Encycl. Brit. XXX. 120/2 For night use, the tracer shows a luminous spark, for day use the tracer gives a smoky trail. 1937 Times 16 Apr. 8/6 This was a most spectacular demonstration, the machine-guns using tracer and the new smoke observation projectiles. 1957 P. Kemp Mine were of Trouble ix. 173 A minute later bursts of tracer flew over us from high ground on our right. 1967 Boston Sunday Globe 23 Apr. 16/4 Helicopter gunships tried to protect the other busy helicopters by circling in pairs, one with a light on to draw a stream of enemy tracers. 1970 L. Deighton Bomber xxiii. 335 He was in the nose watching ropes of red and yellow tracer curve towards them and fall away. 1983 ‘W. Haggard’ Heirloom xv. 169 He'd seen..appeals for death..that airman with tracer burning his lungs out. Compounds attributive and in other combinations, esp. as tracer bullet, tracer shell. ΚΠ 1916 ‘Taffrail’ Pincher Martin xv. 278 A thin trail of dim light climbed skywards in a curve as a tracer shell hurtled its way through the air. 1918 ‘B. Cable’ Air Men o' War 22 Tracer bullets emit smoke and flame to allow the shooter to follow their flight. 1928 C. F. S. Gamble Story N. Sea Air Station xii. 179 When about 1,500 feet below the airship, he fired two trays of explosive and tracer ammunition from his Lewis gun into her. 1943 Sun (Baltimore) 3 Aug. 4/6 During this exchange of fire, a Japanese plane had managed to get on the tail of Captain Walter's Warhawk. Tracer bullets were flying past him, but none hit. 1944 Return to Attack (Army Board, N.Z.) 18/1 The flash and crack of the high-velocity tank guns, the low parabola of the tracer shell. 1969 G. MacBeth War Quartet 40 Tracer-filled In open air-space. 1973 M. Woodhouse Blue Bone xii. 135 A machine-gun stammered and tracer bullets began to draw graceful curves in space. 1976 A. White Long Silence vii. 58 I saw a lone fighter come in from the west... Sudden streams of tracer fire came from him. Draft additions 1993 A device which is designed to transmit a signal and which can therefore be traced when attached to a moving vehicle, etc. ΘΚΠ the mind > attention and judgement > discovery > instrument for detection > [noun] > electronic metal detector1924 tracer1972 1972 K. Bonfiglioli Don't point that Thing at Me xii. 95 The tiny transistorised tracer-beacon..was magnetised fiercely to the underside of my right-hand front mudguard. 1984 J. Savarin Wolfrun xiii. 168 I was asked to plant a tracer on the car. 1989 Judge Dredd No. 2. 30/2 He did this by carrying a tracer, but its signal was blocked by the rock walls of the Judda base within Ayers Rock. This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2022). tracern.² Brit. /ˈtreɪsə/, U.S. /ˈtreɪsər/ Etymology: < trace n.² + -er suffix¹. A trace-horse; also, a trace-horse boy. ΘΚΠ the world > animals > mammals > group Ungulata (hoofed) > family Equidae (general equines) > horse defined by purpose used for > [noun] > draught-horse > team of > horse outside shafts or in traces tracer1839 outrigger1844 trace-horse1844 chain horse1876 outrunner1897 the world > food and drink > farming > farmer > [noun] > farm worker > driver of a team of draught animals goadman1606 goad-groom1614 teamer1696 teamster1758 team man1763 goadsman1788 teamsman1792 voorloper1837 mule skinner1870 swamper1870 tracer1899 skinner1910 1839 D. D. Black Hist. Brechin ix. 212 He loosed the tracer, leaped on its back..and..went off. 1843 A. Bethune Sc. Peasant's Fire-side 134 The sudden jerk..brought the shaft horse, who was a powerful animal, still nearer to that side of the road, while it made both him and the tracer lower their heads. 1899 J. Lumsden Edinb. Poems & Songs 110 Boot-blackers, news-boys—the smartest we ken! An' their billies, the tracers—Dickie an' Ben. This entry has not yet been fully updated (first published 1913; most recently modified version published online March 2022). < n.¹1552n.²1839
随便看	inexertion inexertions inexhalable inexhauribility inexhaurible inexhaust inexhausted inexhaustedly inexhaustibilities inexhaustibility inexhaustible inexhaustible bottle inexhaustibleness inexhaustiblenesses inexhaustibly inexhaustive inexhaustively inexhaustless inexigible inexist inexistence inexistences inexistency inexistent inexisting

tracern.1

Compounds

Draft additions 1993

tracern.2

tracern.¹

tracern.²