Definition of emission
2a : something sent forth by emitting: such as (1) : electromagnetic radiation from an antenna or a celestial body (2) usually emissions : substances discharged into the air (as by a smokestack or an automobile engine)b : effluvium
emissiveplay \ē-ˈmi-siv\ adjective
Examples of emission in a sentence
trying to reduce the emission of greenhouse gases
First Known Use of emission
EMISSION Defined for English Language Learners
Definition of emission for English Language Learners
: the act of producing or sending out something (such as energy or gas) from a source
: something sent out or given off
EMISSION Defined for Kids
Definition of emission for Students
1 : the act of giving off The energy plant is reducing the emission of harmful gases.
2 : something that is given off Scientists can record radio emissions from far-off stars.
Medical Definition of emission
1: an act or instance of emitting
2a: something sent forth by emitting: as (1): electrons discharged from a surface (2): electromagnetic waves radiated by an antenna or a celestial body (3): substances and especially pollutants discharged into the air (as by a smokestack or an automobile gasoline engine)b: a discharge of fluid from a living body; especially : ejaculate—see nocturnal emission
Seen and Heard
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