单词 | emission |
释义 | emission (once / 1200 pages) n An emission is something that's been released or emitted into the world. Car exhaust, burps, and radio broadcasts are all examples of emissions. Technically, an emission is anything that's been released out into the open. But more often it refers to gases being released into the air, like greenhouse gasses or emissions from power plants and factories. Anytime your body emits something (sweat, drool, gas), it's also considered an emission. Be careful not to confuse this word with the closely spelled omission — that's something that's been left out. WORD FAMILYemission: emissions+/emit: emission, emits, emitted, emitter, emitting/emitter: emitters USAGE EXAMPLESThey found that, by 2070, if worldwide emissions aren’t sufficiently reduced, the Persian Gulf would experience heat waves impossible for many humans to survive. The New Yorker(Jan 02, 2017) A government spokesman said the UK was committed to playing a major role in reducing global CO2 emissions. BBC(Jan 02, 2017) Manufacturers might also need to add more pollution controls, or pay other companies for pollution credits earned from shutting down or reducing emissions. Washington Times(Dec 31, 2016) 1n the act of emitting; causing to flow forth Syn|Hypo|Hyper emanation radiation the act of spreading outward from a central source discharge, ventingthe act of venting bombardmentthe act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays) egress, egression, emergence the act of coming (or going) out; becoming apparent 2n a substance that is emitted or released Syn|Hypo|Hyper discharge exudate, exudation a substance that oozes out from plant pores transudate, transudationa substance that transudes effluviuma foul-smelling outflow or vapor (especially a gaseous waste) rheuma watery discharge from the mucous membranes (especially from the eyes or nose) vaginal dischargedischarge of secretions from the cervical glands of the vagina; normally clear or white gumany of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying latexa milky exudate from certain plants that coagulates on exposure to air material, stuff the tangible substance that goes into the makeup of a physical object 3n any of several bodily processes by which substances go out of the body Syn|Hypo|Hyper discharge, expelling elimination, evacuation, excreting, excretion, voiding the bodily process of discharging waste matter catamenia, flow, menses, menstruation, menstruum, periodthe monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause incontinence, incontinencyinvoluntary urination or defecation hypermenorrhea, menorrhagiaabnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged micturition, urinationthe discharge of urine oligomenorrheaabnormally light or infrequent menstruation activity, bodily function, bodily process, body process an organic process that takes place in the body 4n the occurrence of a flow of water (as from a pipe) Hyper flow, flowing the motion characteristic of fluids (liquids or gases) 5n the release of electrons from parent atoms Hypo|Hyper photoemission an emission of photoelectrons (especially from a metallic surface) field emissionthe emission of electrons that are stripped from parent atoms by a high electric field photoelectric emissionthe release or absorption of quanta above a certain energy level radiation, radioactivitythe spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay secondary emissionthe emission of electrons from a surface that is bombarded by higher energy primary electrons thermal emission, thermionic emissionthe emission of electrons from very hot substances corpuscular radiation, particulate radiationa stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons) release a process that liberates or discharges something |
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