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	flyer flyers flyfished flyfishes flyfishing flyflap flyflapper flyflower flying flying at flying bent flying boat flying bomb flying bond flying boom flying bridge flying buttress flying buttresses flying camp flying cat flying circus flying coachman flying colors flying column flying deck

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