| 释义 |
quencher|ˈkwɛnʃə(r)|
[f. as quench + -er1.]
a. One who, or that which, quenches.
c1440J. Capgrave Life St. Kath. i. 820 Norysshere of vertu and quenchere of vice. 1561Preston King Cambyses 904 Of the same [heat] the quencher you must be. a1665J. Goodwin Filled w. the Spirit (1867) 353 Those quenchers of the Spirit in themselves. 1704F. Fuller Med. Gymn. (1711) 86 Liquorice..was ever reputed by the Ancients, for the greatest quencher of Thirst in Nature. 1848Dickens Dombey viii, Mrs. Pipchin's presence was a quencher to any number of candles. 1879H. N. Hudson Hamlet Pref. 4 A feast so overlaid with quenchers of the appetite. 1950H. W. Leverenz Introd. Luminescence of Solids iv. 132 A phosphor center may function as..a poison (or killer, or quencher), by having the excited-state equilibrium level sufficiently near or above f so that radiationless transitions predominate. 1961G. R. Choppin Exper. Nuclear Chem. v. 61 The effect of multiple discharges due to failure of the quencher is included..but will be negligible for a good tube operating at the proper plateau voltage. 1971Nature 13 Aug. 444/3 It is well known that paramagnetic ions are efficient quenchers of electronically excited states. 1976Sci. Amer. June 47/2 (Advt.), This is because the excitation energy of 1O2 is unusually low; a quencher molecule to relieve 1O2 of this energy must have an even lower excited state.
b. colloq. Something to quench thirst; a drink.
1840Dickens Old C. Shop xxxv, Mr. Swiveller replied..that he was still open to a ‘modest quencher’. 1856T. Hughes Tom Brown i. i, A pleasant public, whereat we must really take a modest quencher. 1857Kingsley Two Y. Ago xviii, Trebooze..now offers Tom a ‘quencher’, as he calls it. |