secondary drive n.
A drive not directly related to a biological need. Also called acquired drive.
- Secondary dysmenorrhea
secondary dysmenorrhea n. Dysmenorrhea due to inflammation, infection, tumor, or anatomical factors.
- Secondary electron
secondary electron 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.