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单词 detent
释义

detentn.1

/dɪˈtɛnt/
Forms: (Also 1600s detton.)
Etymology: < French détente, Old French destente (Froissart, 14th cent.), derivative of détendre ‘to slacken, unstretch, undo’, in Old French destendre , < des- , Latin dis- privative (compare de- prefix 1f) + tendre to stretch. (In Latin distendĕre the prefix had a different force: see distend v.) The earliest application of the word in French was to the destente of the arbalest or crossbow, whereby the strained string was released and the bolt discharged; hence it was transferred to the analogous part in fire-arms. In English, the word seems to have been viewed as connected with Latin dētinēre, dētent-, and so with detain, detention, and to have been modified in meaning accordingly. The fact that the same part which allows of the escape of that which is detained or held tense, is also often the means of detention, favoured this misconception of the word.
1. gen. A stop or catch in a machine which checks or prevents motion, and the removal of which brings some motor at once into action.
ΘΚΠ
society > occupation and work > equipment > machine > parts of machines > mechanism > [noun] > part of > projecting part or catch
catch1398
finger1496
catch hook1695
dog1825
detent1832
winglet1835
catch lock1836
trip-catch1880
trip1906
1832 D. Brewster Lett. Nat. Magic xi. 283 When a spring was touched, so as to release a detent, the figure immediately began to draw.
1832 C. Babbage Econ. Machinery & Manuf. (ed. 2) viii. 57 An apparatus..which..leaves a small dot of ink on the dial-plate whenever a certain stop or detent is pushed in.
1860 Proc. Amer. Philol. Soc. 7 339 A detent shoots the slate back and a new record begins.
1869 Daily News 16 Mar. The handle, on being pulled, releases a detent in the guard's van, which allows a weighted lever to drop and pull up the slack of a chain which communicates with the engine whistle.
1869 Athenæum 25 Dec. 874 A Christmas recollection..more than fifty years old..These boxes..had each a little slit, into which, a halfpenny being dropped, a detent was let go, the box would open, and the pipe might be filled.
1871 J. Tyndall Fragm. Sci. (1879) I. xx. 488 An engineer..loosing a detent, can liberate an amount of mechanical motion [etc.].
1871 J. Tyndall Fragm. Sci. (1879) II. vii. 97 When these crystals are warmed, the detent is lifted, and an outflow of light immediately begins.
2. spec.
Categories »
a. In a gun-lock: see detant n.
b. In clocks and watches: The catch which regulates the striking.
ΘΚΠ
the world > time > instruments for measuring time > clock > [noun] > part(s) of
nut1428
peise1428
plumbc1450
Jack1498
clockwork1516
larum1542
Jack of the clockhouse1563
watch-wheel1568
work1570
plummeta1578
Jack of the clock1581
snail-cam1591
snail-work1591
pointer1596
quarter jack1604
mainspring1605
winder1606
notch-wheel1611
fusee1622
count-wheel1647
jack-wheel1647
frame1658
arbor1659
balance1660
fuse1674
hour-figure1675
stop1675
pallet1676
regulator1676
cock1678
movement1678
detent1688
savage1690
clock1696
pinwheel1696
starred wheel1696
swing-wheel1696
warning-wheel1696
watch1696
watch-part1696
hoop-wheel1704
hour-wheel1704
snail1714
step-wheel1714
tide-work1739
train1751
crutch1753
cannon pinion1764
rising board1769
remontoire1774
escapement1779
clock jack1784
locking plate1786
scapement1789
motion work1795
anchor escapement1798
scape1798
star-wheel1798
recoil escapement1800
recoiling pallet1801
recoiling scapement1801
cannon1802
hammer-tail1805
recoiling escapement1805
bottle jack1810
renovating spring1812
quarter-boy1815
pin tooth1817
solar wheel1819
impulse-teeth1825
pendulum wheel1825
pallet arbor1826
rewinder1826
rack hook1829
snail-wheel1831
quarter bell1832
tow1834
star pulley1836
watch train1838
clock train1843
raising-piece1843
wheelwork1843
gravity escapement1850
jumper1850
vertical escapement1850
time train1853
pin pallet1860
spade1862
dead well1867
stop-work1869
ringer1873
strike-or-silent1875
warning-piece1875
guard-pin1879
pendulum cock1881
warning-lever1881
beat-pin1883
fusee-piece1884
fusee-snail1884
shutter1884
tourbillion1884
tumbler1884
virgule1884
foliot1899
grasshopper1899
grasshopper escapement1899
trunk1899
pin lever1908
clock spring1933
1688 R. Holme Acad. Armory iii. 374/1 In the Clock..the two Dettons with their Notches, that strike into two Wheel Detton Latches.
1704 J. Harris Lexicon Technicum I Detents, in a Clock, are those stops, which by being lifted up, or let fall down, do lock and unlock the Clock in striking.
1825 ‘J. Nicholson’ Operative Mechanic 509 When the oil thickens, the spring of the pivot-detents become so affected by it, as to prevent the detent from falling into the wheel quick enough, which causes irregular time, and ultimately a stoppage of the watch.
1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 85 The detent of a chronometer escapement is the piece of steel carrying the stone which detains or locks the escape wheel.
c. In locks.
ΘΚΠ
society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > lock > part of lock > skip or catch
detainer1850
detent1850
1850 J. Chubb On Constr. Locks & Keys 28 If any one of the tumblers was lifted too high, it overset the detector detent, which by a spring action fastened the bolt.

Compounds

C1. attributive and in other combinations, as detent-wheel, detent-catch, detent-work.
ΚΠ
1704 J. Harris Lexicon Technicum I. at Watch-work The Detent-wheel moves round every Stroke the Clock striketh or sometimes but once in two Strokes.
1822 T. Webster Imison's Elem. Sci. & Art (new ed.) I. 93 Regard need only be had to the count-wheel, striking-wheel, and detent-wheel.
1874 E. H. Knight Amer. Mech. Dict. I. 690/2 A detent-catch falls into the striking-wheel of a clock, and stops it from striking more than the right number of times.
1881 W. W. Greener Gun & its Devel. 244 The furniture filer also fits the detent work for the hair-triggers.
C2.
detent-joint n. the ‘trigger-joint’ by which the pectoral spine of a siluroid fish is kept erect.
This entry has not yet been fully updated (first published 1895; most recently modified version published online June 2022).

detentn.2

/dɪˈtɛnt/
Etymology: ? < Latin dētent- participial stem of dētinēre to detain v.
? Restraint; holding back or inhibition.
ΘΚΠ
society > authority > subjection > restraint or restraining > restraint depriving of liberty > [noun]
safety?a1400
detentc1465
custodyc1503
straina1510
safeguard1528
violence?1535
safe custody1536
restrainta1547
detention?1570
retention1572
constraint1590
sickerness1678
deportation1909
society > authority > subjection > restraint or restraining > [noun]
havingeOE
holdc1230
withholdingc1386
restrainingc1390
refraininga1398
repression?a1425
repressing1431
bridlingc1443
restraint1443
restrainc1449
repressurec1487
restingc1503
abstention1521
controlling1523
controlment1525
distrain1531
staying1563
control1564
refrain1568
retention1578
check1579
restrainment1579
refranation1583
cohibition1586
withholdment1640
curbing1661
coercion1827
chastenment1882
detent1907
clamp-down1940
c1465 Pol. Rel. & L. Poems (1866) 10 Gabull of the chancery begynyth ‘heu mihi!’ that is his preve bande, and detent of treson.
1907 W. James Mem. & Stud. (1911) 256 They are forces of detent in situations in which no other force produces equivalent effects, and each is a force of detent only in a specific group of men.
1929 R. Bridges Test. Beauty iv. 150 A pinprick or a momentary whiff or hairbreadth motion freëth the detent of force.
This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2018).

detentadj.

Etymology: < Latin dētentus, past participle of dētinēre to detain v.
Obsolete.
deatined (see detain v. 1b); kept back; ‘holden’ (with infirmity, etc.). In quot. a1513 perhaps past tense.
ΘΚΠ
the world > health and disease > ill health > [adjective] > in state of ill health or diseased
untrumc825
sickc888
unwholec888
slackc897
unstronga900
sicklea1000
sam-halea1023
worseOE
attaint1303
languishinga1325
heallessc1374
sicklyc1374
sicklewa1387
bada1393
mishalea1400
languoring?c1425
distempered1440
unwell?c1450
detent?a1475
poora1475
languorousc1475
maladif1481
illa1500
maladiousc1500
wanthriven1508
attainted1509
unsound1513
acrazed1521
cracked1527
unsoundya1529
visited1537
infirmed1552
crazed1555
healthless1568
ill-liking1572
afflicted1574
crazy1576
unhealthful1580
sickish1581
valetudinary1581
not well1587
fainty1590
ill-disposed1596
unhealthsome1598
tainted1600
ill-affected1604
peaking1611
unhealthy1611
infirmited1616
disaffected1626
physical1633
illish1637
pimping1640
invalid1642
misaffected1645
valetudinarious1648
unhale1653
badly1654
unwholesome1655
valetudinous1655
morbulent1656
off the hooksa1658
mawkish1668
morbid1668
unthriven1680
unsane1690
ailing1716
not wellish1737
underlya1742
poorly1750
indifferent1753
comical1755
maladized1790
sober1808
sickened1815
broken-down1816
peaky1821
poorlyish1827
souffrante1827
run-down1831
sicklied1835
addle1844
shaky1844
mean1845
dauncy1846
stricken1846
peakyish1853
po'ly1860
pindling1861
rough1882
rocky1883
suffering1885
wabbit1895
icky-boo1920
like death warmed up1924
icky1938
ropy1945
crappy1956
hanging1971
sick as a parrot1982
shite1987
?a1475 (?a1425) tr. R. Higden Polychron. (Harl. 2261) (1865) I. 361 After that thei be detente with longe infirmite thei be brouȝhte to another yle.
a1513 R. Fabyan New Cronycles Eng. & Fraunce (1516) II. f. clxxxiiiv And yet for that his mynde nothynge detent All goostly helthe for his Soule to prouyde.
This entry has not yet been fully updated (first published 1895; most recently modified version published online December 2021).
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n.11688n.2c1465adj.?a1475
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更新时间:2024/9/20 12:09:08