单词	Palaeospondylus
释义	Palaeospondylus noun Palaeo·​spondylus : a genus of extinct primitive vertebrates that are known from a single form (P. gunni) of the Devonian of Scotland that is usually about one inch long with a large skull, branchial arches and jaws highly modified or possibly absent, a segmented vertebral column, and the caudal fin and limb girdles well-developed, and that is usually placed among the Placodermi but sometimes considered a cyclostome see cycliae Word History Etymology New Latin, from pale- + -spondylus
随便看	regr regrade regraded regrades regrading regraft regrafted regrafting regrafts regrant regranted regranting regrants regrasp regrass regrate regrated regrater regraters regrates pre-amps pre-anaesthetic pre-anesthetic pre-announce pre-announced

英语词典包含469781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。