secondary sex characteristic — n a physical characteristic (as the breasts of a female mammal or the nuptial plumage of a male bird) that appears in members of one sex at puberty or in seasonal breeders at the breeding season and is not directly concerned with reproduction… … Medical dictionary
Secondary emission — is a phenomenon where additional electrons, called secondary electrons, are emitted from the surface of a material when an incident particle (often, charged particle such as electron or ion) impacts the material with sufficient energy. The number … Wikipedia
Secondary sex characteristic — Secondary sex characteristics are traits that distinguish the two sexes of a species, but that are not directly part of the reproductive system. They are believed to be the product of sexual selection for traits which give an individual an… … Wikipedia
secondary sex characteristic — n. any of the physical characteristics that differentiate male and female individuals, as distribution of hair or fat on the body, breast and muscle development, deepening of the voice, etc., that are not directly related to reproduction and… … English World dictionary
characteristic fluorescent rays — secondary rays emitted as a result of the rearrangement of electrons in the inner shells of atoms; identical with characteristic rays (q.v.) except that characteristic rays are caused by the bombardment of the x ray tube target by electrons,… … Medical dictionary
characteristic X-rays — see under ↑X • • • Main Entry: ↑character characteristic X rays Secondary X rays emitted when X rays fall on matter, which contain monochromatic radiations that vary in wavelength according to the atoms from which they are scattered • • • Main… … Useful english dictionary
secondary sex characteristic — noun the genetically determined sex characteristics that are not functionally necessary for reproduction (pitch of the voice and body hair and musculature) • Syn: ↑secondary sexual characteristic, ↑secondary sex character • Hypernyms: ↑sex… … Useful english dictionary
secondary sexual characteristic — noun the genetically determined sex characteristics that are not functionally necessary for reproduction (pitch of the voice and body hair and musculature) • Syn: ↑secondary sex characteristic, ↑secondary sex character • Hypernyms: ↑sex… … Useful english dictionary
secondary sex character — noun the genetically determined sex characteristics that are not functionally necessary for reproduction (pitch of the voice and body hair and musculature) • Syn: ↑secondary sex characteristic, ↑secondary sexual characteristic • Hypernyms: ↑sex… … Useful english dictionary
Secondary flow — In fluid dynamics, a secondary flow is a relatively minor flow superimposed on the primary flow, where the primary flow usually matches very closely the flow pattern predicted using simple analytical techniques and assuming the fluid is inviscid … Wikipedia
