单词	clade
释义	clade /kleɪd / noun Biology A group of organisms believed to comprise all the evolutionary descendants of a common ancestor: the great ape and human clade... Species in the two primary clades in the genus tend to be found in different parts of North America. Fossils are often not ancestors of extant taxa, but instead may be extinct sister groups to modern taxa or clades. The same mode of increase has been adopted independently in phylogenetically distinct clades. Origin 1950s: from Greek klados 'branch'.
随便看	pyramidoidal pyramidological pyramidologist pyramidology pyramidon pyramidone pyramid proportions pyramid scheme pyramid-sell pyramid selling pyramid shell pyramid spot Pyramid Text pyramid-wise Pyramus pyran pyrane pyranometer pyranose pyranoside pyran ring pyrargyrite pyrauxite pyrazinamide pyrazine

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。