单词	biconcave
释义	biconcave adjective bi·​con·​cave (ˌ)bī-(ˌ)kän-ˈkāv  -ˈkän-ˌkāv  : concave on both sides biconcavity ˌbī-(ˌ)kän-ˈka-və-tē  noun Word History First Known Use 1807, in the meaning defined above Medical Definition biconcave adjective bi·​con·​cave ˌbī-(ˌ)kän-ˈkāv  (ˈ)bī-ˈkän-ˌ  : concave on both sides biconcave vertebrae a biconcave lens
随便看	lucy stoners lucyes lucys lud luda Luddism Luddite luddites ludditism lude ludefisk Ludendorff luderick ludes ludfisk Ludhiana ludians ludibrious ludic ludicro- ludicrous ludicrously ludicrousness ludicrousnesses ludification

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。