saw toothn.

Etymology: saw n.¹

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a. A tooth of a saw.

b. A tooth (of an animal, also, of a machine) shaped like a saw, or forming one of a serrated series.

ΘΚΠ

the world > animals > animal body > general parts > head and neck > [noun] > mouth > tooth or tusk > tooth shaped like saw

saw tooth1601

1601 P. Holland tr. Pliny Hist. World I. 337 The saw teeth run one betweene another,..as we see in serpents, fishes, and dogs.

1835 A. Ure Philos. Manuf. 113 The saw-teeth of the gin, in tearing the fibres from the seeds, broke several of them.

1880 M. P. Bale Woodworking Machinery 332 A circular holder..fitted to a circular notch at the root of the saw tooth.

1886 Encycl. Brit. XXI. 344/1 Inserted teeth [in circular saws] are of various forms and shapes, from that of the ordinary saw tooth..to a ‘chisel point’.

c. Electronics. A wave-form showing a slow linear rise and rapid linear fall, or the reverse; a voltage or current varying in this way. Usually attributive, as saw-tooth generator, saw-tooth wave-form.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [adjective] > of specific waveform

CW1920

saw tooth1933

ramp1945

the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > waveform > types of waveform

saw tooth1933

bias1941

square wave1944

ramp1945

1933 Proc. IRE 21 1666 The variation of intensity of both horizontal and vertical deflecting fields plotted against time is of a ‘saw-tooth’ shape.

1935 M. G. Scroggie Television iv. 37 The sudden charge of the condenser, followed by a slower discharge, yields a saw-tooth wave-form.

1940 V. K. Zworykin & G. A. Morton Television xv. 473 If the complete sawtooth..is a modulation, the shape will be keystoned.

1942 Electronic Engin. 14 666/2 The time-base circuit is..adapted for single sweep operation and the saw-tooth generated can be expanded symmetrically with respect to the centre of the tube.

1947 R. Lee Electronic Transformers & Circuits ix. 251 Probably the most common application of sawtooth amplifier transformers is to provide a linear sweep to horizontal plates of a cathode ray oscilloscope.

1969 J. J. Sparkes Transistor Switching iii. 63 All sawtooth-wave generators integrate a constant voltage or current with respect to time.

Compounds

C1. attributive. = saw-toothed.

ΘΚΠ

the world > space > shape > unevenness > condition or fact of receding > condition or action of indentation of edge > [adjective] > finely or serrated

tootheda1387

serratile?1541

dented1552

denticle1574

sawed1607

comb-like1615

denticulate1661

denticulated1665

serrate1668

serrated1703

dentated1753

dentulated1796

dentelated1797

dentate1810

serratiform1821

serriform1822

teethed1825

saw-edged1846

serried1848

saw-toothed1857

denticular1878

saw tooth1884

1884 W. S. B. McLaren Spinning Woollen & Worsted (ed. 2) 228 All of which are covered with garnet saw-tooth licker-in wire.

C2.

saw-tooth roof n. a roof with a serrated profile incorporating windows in the steeper sides, which face in the direction of the equator.

ΘΚΠ

society > inhabiting and dwelling > inhabited place > a building > parts of building > roof > [noun] > types of roof generally

vaulta1387

plat-roofa1425

pend1454

faunsere1460

compassed roofa1552

terrace1572

sotie1578

crown1588

arch-roof1594

arch1609

under-roof1611

concameration1644

voltoa1660

hip roof1663

French roof1669

oversail1673

jerkinhead1703

mansard1704

curb-roof1733

shed roof1736

gable roof1759

gambrel roof1761

living roof1792

pent roof1794

span-roof1823

wagon-head1823

azotea1824

rafter roof1825

rooflet1825

wagon-vault1835

bell-roof1842

spire-roof1842

cradle-roof1845

packsaddle roof1845

open roof1847

umbrella roof1847

gambrel1848

packsaddle1848

compass-roof1849

saddleback1849

saddle roof1850

curbed roof1866

wagon-roof1866

saw-tooth roof1900

trough roof1905

skillion roof1911

north-light roof1923

shell roof1954

green roof1984

knee-roof-

1900 Engineering 9 Feb. 173/2 The factory consists of four bays, each covered with a saw-tooth roof running east and west, and glazed on the north side only.

1942 L. E. Asher & E. Heal Send No Money 58 It had plenty of windows, a sawtooth roof to provide light, and it was airy and spacious.

1966 L. Cohen Beautiful Losers i. 10 The sun was just coming up over the sawtooth roof of the factory next door.

saw-tooth sterrinck n. the Crab-eating Seal, Lobodon carcinophaga.

ΚΠ

187. Cassell's Nat. Hist. II. 243 The Crab-eating Seal or Saw-tooth Sterrinck of Owen [cf. quot. 1866 for saw-toothed adj. at saw n.¹ Compounds 3].

This entry has not yet been fully updated (first published 1910; most recently modified version published online June 2020).

单词	saw tooth
释义	saw toothn. Etymology: saw n.¹ Thesaurus » Categories » a. A tooth of a saw. b. A tooth (of an animal, also, of a machine) shaped like a saw, or forming one of a serrated series. ΘΚΠ the world > animals > animal body > general parts > head and neck > [noun] > mouth > tooth or tusk > tooth shaped like saw saw tooth1601 1601 P. Holland tr. Pliny Hist. World I. 337 The saw teeth run one betweene another,..as we see in serpents, fishes, and dogs. 1835 A. Ure Philos. Manuf. 113 The saw-teeth of the gin, in tearing the fibres from the seeds, broke several of them. 1880 M. P. Bale Woodworking Machinery 332 A circular holder..fitted to a circular notch at the root of the saw tooth. 1886 Encycl. Brit. XXI. 344/1 Inserted teeth [in circular saws] are of various forms and shapes, from that of the ordinary saw tooth..to a ‘chisel point’. c. Electronics. A wave-form showing a slow linear rise and rapid linear fall, or the reverse; a voltage or current varying in this way. Usually attributive, as saw-tooth generator, saw-tooth wave-form. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [adjective] > of specific waveform CW1920 saw tooth1933 ramp1945 the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > waveform > types of waveform saw tooth1933 bias1941 square wave1944 ramp1945 1933 Proc. IRE 21 1666 The variation of intensity of both horizontal and vertical deflecting fields plotted against time is of a ‘saw-tooth’ shape. 1935 M. G. Scroggie Television iv. 37 The sudden charge of the condenser, followed by a slower discharge, yields a saw-tooth wave-form. 1940 V. K. Zworykin & G. A. Morton Television xv. 473 If the complete sawtooth..is a modulation, the shape will be keystoned. 1942 Electronic Engin. 14 666/2 The time-base circuit is..adapted for single sweep operation and the saw-tooth generated can be expanded symmetrically with respect to the centre of the tube. 1947 R. Lee Electronic Transformers & Circuits ix. 251 Probably the most common application of sawtooth amplifier transformers is to provide a linear sweep to horizontal plates of a cathode ray oscilloscope. 1969 J. J. Sparkes Transistor Switching iii. 63 All sawtooth-wave generators integrate a constant voltage or current with respect to time. Compounds C1. attributive. = saw-toothed. ΘΚΠ the world > space > shape > unevenness > condition or fact of receding > condition or action of indentation of edge > [adjective] > finely or serrated tootheda1387 serratile?1541 dented1552 denticle1574 sawed1607 comb-like1615 denticulate1661 denticulated1665 serrate1668 serrated1703 dentated1753 dentulated1796 dentelated1797 dentate1810 serratiform1821 serriform1822 teethed1825 saw-edged1846 serried1848 saw-toothed1857 denticular1878 saw tooth1884 1884 W. S. B. McLaren Spinning Woollen & Worsted (ed. 2) 228 All of which are covered with garnet saw-tooth licker-in wire. C2. saw-tooth roof n. a roof with a serrated profile incorporating windows in the steeper sides, which face in the direction of the equator. ΘΚΠ society > inhabiting and dwelling > inhabited place > a building > parts of building > roof > [noun] > types of roof generally vaulta1387 plat-roofa1425 pend1454 faunsere1460 compassed roofa1552 terrace1572 sotie1578 crown1588 arch-roof1594 arch1609 under-roof1611 concameration1644 voltoa1660 hip roof1663 French roof1669 oversail1673 jerkinhead1703 mansard1704 curb-roof1733 shed roof1736 gable roof1759 gambrel roof1761 living roof1792 pent roof1794 span-roof1823 wagon-head1823 azotea1824 rafter roof1825 rooflet1825 wagon-vault1835 bell-roof1842 spire-roof1842 cradle-roof1845 packsaddle roof1845 open roof1847 umbrella roof1847 gambrel1848 packsaddle1848 compass-roof1849 saddleback1849 saddle roof1850 curbed roof1866 wagon-roof1866 saw-tooth roof1900 trough roof1905 skillion roof1911 north-light roof1923 shell roof1954 green roof1984 knee-roof- 1900 Engineering 9 Feb. 173/2 The factory consists of four bays, each covered with a saw-tooth roof running east and west, and glazed on the north side only. 1942 L. E. Asher & E. Heal Send No Money 58 It had plenty of windows, a sawtooth roof to provide light, and it was airy and spacious. 1966 L. Cohen Beautiful Losers i. 10 The sun was just coming up over the sawtooth roof of the factory next door. saw-tooth sterrinck n. the Crab-eating Seal, Lobodon carcinophaga. ΚΠ 187. Cassell's Nat. Hist. II. 243 The Crab-eating Seal or Saw-tooth Sterrinck of Owen [cf. quot. 1866 for saw-toothed adj. at saw n.¹ Compounds 3]. This entry has not yet been fully updated (first published 1910; most recently modified version published online June 2020). < n.1601
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