acrogenWiktionary 原文英美构词拆解acroacro-前缀gen-gen后缀acro-The extremities: limbs, head, fingers, toes, etc. · Located or positioned at a tip or tips of an object or body.-genA producer of something, or an agent in the production of something.词源说明From acro- + -gen.释义名词noun1(biology) any flowerless plant whose growth takes place at the tip of the main stem, especially the cryptogam ferns