Main Entry:

emis·sion

Pronunciation:

\ē-ˈmi-shən\

Function:

noun

Date:

1607

1 a: an act or instance of emitting : emanation barchaic : publication c: a putting into circulation2 a: something sent forth by emitting: as (1): electromagnetic radiation from an antenna or a celestial body (2)usually plural : substances discharged into the air (as by a smokestack or an automobile engine) b: effluvium

— emis·sive \-ˈmi-siv\ adjective