英语词汇“polytomy”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	polytomy
释义	po·lyt·o·my (pə-lĭtə-mē) n. In a cladogram, a point from which two or more new branches diverge, representing either of two cases: a. A multiple speciation event in which two or more species diverge from the same ancestor. Also called hard polytomy. b. A speciation event in which two or more species are presumed to descend from the same ancestor, but the order of speciation is unknown. Also called soft polytomy. [POLY- + -TOMY (on the model of DICHOTOMY).]
随便看	vibratory vibrio vibrioid vibriosis vibrissa vibronic viburnum vicar vicarage vicar apostolic vicarate vicar forane vicar general vicarial vicariance vicariant vicariate vicarious vicariously vicariousness Vicar of Christ vicarship vice vice vice

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