词汇 | secondary-sexual-characteristic |
释义 | secondary sexual characteristic noun[ C ] anatomy specializeduk /ˌsek.ən.dri ˌsek.ʃu.əl kær.ək.təˈrɪs.tɪk/ us /ˌsek.ən.der.i ˌsek.ʃu.əl ker.ək.təˈrɪs.tɪk/(alsosecondary sex characteristic) any physical characteristic that is different in males and females, and that is not directly related to reproduction(= having babies), for example a deep voice in adult males, wider hips in adult females, or colourful feathers in some male birds: Testosterone is also responsible for secondary sexual characteristics including muscle bulk, deep voice, and hair pattern. When secondary sex characteristics start to occur, boys acquire muscle mass and girls acquire fat mass. Physical development of secondary sex characteristics occurs more rapidly during adolescence than at any other stage of development. The sex of the frogs was not determined, as there are no external secondary sexual characteristics in this species. Once in these microhabitats, the nematode larvae develop secondary sexual characteristics typical of adults, and mate. Physically and mentally mature & immature adult adulting ageing babyish childish immature immaturely immaturity infantile juvenile mature maturity overgrown petulance petulancy petulant petulantly puerility sophomoric young at heartidiom |
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