| 单词 | common ancestor |
| 释义 | > as lemmascommon ancestor common ancestor n. an individual or group from whom or which two or more individuals, groups, etc., are thought to be descended, esp. (in later use) in a biological context. ΚΠ 1528–30 tr. T. Littleton Tenures (new ed.) iii. f. xxvv They be but as one heyre to theyr comon auncestre, that is to say to theyr graundfader from whom the lande dyscended to theyr moders. 1745 Seasonable Advice Protestants 17 Protestants; who from a common Ancestor..have swarmed into many Stocks. 1859 C. Darwin Origin of Species vi. 193 Generally when the same organ appears in several members of the same class, especially if in members having very different habits of life, we may attribute its presence to inheritance from a common ancestor. 1981 Jrnl. Theoret. Biol. 91 558 The common ancestor of today's cells was either a primitive prokaryote..or a cell type which had neither prokaryotic nor eukaryotic characteristics. 2011 New Yorker 15 Aug. 72/2 According to the most recent estimates, Neanderthals and modern humans share a common ancestor who lived about four hundred thousand years ago. < as lemmas |
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