| 释义 |
quiescent, a. and n.|kwaɪˈɛsənt, kwɪ-|
[a. ppl. stem of L. quiēscĕre to quiesce. So mod.F. quiescent.]
A. adj.
1. a. Motionless, inactive, at rest.
1646Sir T. Browne Pseud. Ep. 190 The active or moving side..the weaker or more quiescent part. 1710Berkeley Princ. Hum. Knowl. §114 A man in a ship may be said to be quiescent with relation to the sides of the vessel. 1753Chambers Cycl. Suppl. App. s.v. Force, The pressure of the quiescent body against the obstacle that hinders it to move. 1812Woodhouse Astron. i. 3 The pole, which is the place of a quiescent star. 1874Lubbock Orig. & Met. Ins. iv. 63 The quiescent and death-like condition of the pupa.
†b. quiescent reason, the fallacy of sorites.
1656Stanley Hist. Philos. viii. (i.) xxxii, Sorites..is called also ἡσυχάζων λογὸς, the quiescent reason, because the way to withstand it, is by stopping, and withholding the assent.
2. a. Of a letter: Not sounded, silent; spec. in Hebrew grammar (see quiesce v. 2). quiescent verb: (see quot. 1853).
1609C. Butler Fem. Mon. (1634) p. iv, The E silent or quiescent, which yieldeth no sound. 1711J. Greenwood Eng. Gram. 301 Other Letters..are quiescent or silent. 1807G. Chalmers Caledonia I. i. iv. 160 The Irish Raths have the same origin, the [th] being quiescent. 1807Hurwitz Elem. Heb. Lang. 101 According to the system of reading by points, the letters יו{hebhe}א are in many instances quiescent. 1853J. R. Wolf Practical Heb. Gram. 111 Quiescent verbs are those in which one of the feeble letters יו{hebhe}א occurs as a radical letter.
b. Of a person: Silent, not speaking. rare.
1791Boswell Johnson an. 1784. 17 May, Johnson was very quiescent to-day.
3. Electronics. Corresponding to or characterized by an absence of an input to a device ready to receive one.
1923E. W. Marchant Radio Telegr. & Teleph. vi. 84 Attempts have been made to arrange the transmitter in such a way that the speech-current will act as a switch for starting up the continuous waves at the transmitting end. This arrangement of circuit has been called the ‘Quiescent aerial’ system. 1952E. Armitage Wireless Fund. ix. 167 The advantage of Class B amplification is that the steady anode current flowing through the circuit when the valve is quiescent is very much smaller than under Class A conditions. 1965Wireless World July 325/2 This imposes a problem on the restricted signal handling capacity of Tr1 due to its very low quiescent current. 1975D. G. Fink Electronics Engineer's Handbk. ix. 56 In the absence of an rf input signal, these amplifiers remain quiescent even with full operational voltage applied.
B. n.
1. A quiescent letter.
1727in Bailey, vol. II. 1807 Hurwitz Elem. Heb. Lang. 134 Whenever a letter is written and not pronounced, it is called by Hebrew Grammarians..an invisible quiescent, or a mute. 1831Lee Hebr. Gram. (1832) 36 The..letters, considered either as consonants or quiescents, will occasionally be changed for one another. 1882–3F. Brown in Schaff Encycl. Relig. Knowl. I. 583/1 The weaker Shemitic gutturals and the quiescents.
2. A quiescent verb (see 2 above).
1831Lee Hebr. Gram. (1832) 222 We do not think it necessary here to divide these verbs into Defectives and Quiescents as has usually been done. |