(Zoology & Anatomy)a natural protuberance from a bone, or inside the shell or exoskeleton of a sea urchin or insect, for the attachment of muscles (动, 剖)骨突 ■(Botany)a swelling at the base of the sporangium in some mosses (植)(一些藓类植物的)蒴托 ■(Geology)a small offshoot extending from an igneous intrusion into the surrounding rock (地质)(火成岩侵入周围岩石的)小岩枝
派生 apophyseal adjective 语源
late 16th cent.: modern Latin, from Greek apophusis 'offshoot', from apo- 'from, away' + phusis 'growth'