protofeatherWiktionary 原文英美构词拆解protoproto-前缀featherfeather词干proto-An early, primitive stage of development. · Original, older.词源说明From proto- + feather.释义名词noun1(paleontology) The hypothetical precursors of bird feathers, believed to have been grown by certain dinosaurs.同族词派生词 1protofeathered