| 单词 | sex ratio |
| 释义 | > as lemmassex ratio sex ratio n. the ratio of male to female individuals in a population. ΘΚΠ the world > life > sex and gender > [noun] > ratio sex ratio1886 1886 Jrnl. Statist. Soc. 49 474 There is therefore some, but not much, evidence of an increase in Hertfordshire of the sex-ratio during the twenty-one years. 1913 T. H. Morgan Heredity & Sex 221 A curious sex ratio appeared in one race of fruit flies. Some of the females persisted in producing twice as many females as males. 1974 J. Burnett Useful Toil i. 48 Because of the unequal sex ratio one in three [Victorian] women were ‘doomed’ to spinsterhood. 2003 Daily Tel. 7 Mar. 19/5 The falling sex ratio across Punjab prompted the Akal Takht, Sikhism's supreme religious and temporal seat, to issue an edict last year banning female foeticide. < as lemmas |
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