An electron produced by secondary emission.
noun 1. the emission of electrons (secondary electrons) from a material that is bombarded with electrons or ions. secondary emission noun 1. (physics) the emission of electrons (secondary electrons) from a solid as a result of bombardment with a beam of electrons, ions, or metastable atoms: used in electron multipliers secondary emission The emission of […]
- Secondary encephalitis
secondary encephalitis n. A usually demyelinating form of encephalitis contracted following vaccination for smallpox or during convalescence from measles, mumps, varicella, and certain other infectious diseases.
- Secondary follicle
secondary follicle n. See Graafian follicle.
noun, Psychiatry. 1. any advantage, as increased attention, disability benefits, or release from unpleasant responsibilities, obtained as a result of having an illness (distinguished from primary gain). secondary gain n. Interpersonal or social advantages gained indirectly from organic illness, such as an increase in attention from others.