| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024e•mis•sion (i mish′ən),USA pronunciation n. - an act or instance of emitting:the emission of poisonous fumes.
- something that is emitted;
discharge;
emanation. - an act or instance of issuing, as paper money.
- Electronicsa measure of the number of electrons emitted by the heated filament or cathode of a vacuum tube.
- Physiologyan ejection or discharge of semen or other fluid from the body.
- Physiologythe fluid ejected or discharged.
- Latin ēmissiōn- (stem of ēmissiō), equivalent. to ēmiss(us), past participle of ēmittere to emit (ē- e- + mit- send + -tus past participle suffix) + -iōn- -ion
- Middle French)
- (1600–10
- 5.See corresponding entry in Unabridged ejaculation.
- 6.See corresponding entry in Unabridged ejaculate.
Collins Concise English Dictionary © HarperCollins Publishers:: emission /ɪˈmɪʃən/ n - the act of emitting or sending forth
- energy, in the form of heat, light, radio waves, etc, emitted from a source
- a substance, fluid, etc, that is emitted; discharge
- any bodily discharge, esp an involuntary release of semen during sleep
Etymology: 17th Century: from Latin ēmissiō, from ēmittere to send forth, emiteˈmissive adj e•mit /ɪˈmɪt/USA pronunciation v. [~ + object], e•mit•ted, e•mit•ting. - to send forth (liquid, light, particles, etc.); discharge:The fireplace emitted a pleasant warmth.
- to utter (a sound): to emit a cry.
e•mis•sion /ɪˈmɪʃən/USA pronunciation n. [countable* uncountable]See -mit-. WordReference Random House Unabridged Dictionary of American English © 2024e•mit (i mit′),USA pronunciation v.t., e•mit•ted, e•mit•ting. - to send forth (liquid, light, heat, sound, particles, etc.);
discharge. - to give forth or release (a sound):He emitted one shrill cry and then was silent.
- to utter or voice, as opinions.
- to issue, as an order or a decree.
- to issue formally for circulation, as paper money.
- Latin ēmittere to send forth, equivalent. to ē- e- + mittere to send
- 1620–30
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