nocturnal emission(redirected from Night emission)
Also found in: Dictionary, Thesaurus, Encyclopedia.
1. a discharge.
2. an involuntary discharge of semen.
nocturnal emission reflex emission of semen during sleep.
thermionic emission the application of heat, such as to a filament, resulting in the emission of electrons and ions.
a seminal discharge occurring during sleep.
An involuntary ejaculation of semen during sleep.
involuntary emission of semen during sleep, usually in association with an erotic dream. Also called wet dream.