| 释义 |
emis·sion
\ēˈmishən, ə̇ˈ-\ noun
(-s)
Etymology: Latin emission-, emissio, from emissus + -ion-, -io -ion
1. obsolete : an act of sending forth (as on a mission)
2.
a. : an act or instance or emitting (as heat or light) : emanation
< the emission of the sun's rays >
< slow emission of warmth from a banked fire >
b. : a putting into circulation (as of a coinage)
< the emission of bank notes unbacked by specie >
c. archaic : publication especially of a writing
d. : a flow of electrons out of the heated filament or cathode of an electron tube
3.
a. : something that is sent forth by or as if by emitting : a discharge especially of electrons
b.
(1) : a discharge of fluid from the living body
(2) : ejaculate 1 — called also emissio seminis
c. : effluvium, emanation
< any emission from the person of the medium such as ectoplasm or odor >
< an evil-smelling sticky emission from the cut surface > |