apophysis
/əˈpɒfɪsɪs/noun
(pl. apophyses /-siːz/)
1- 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。
1.1
- Botany a swelling at the base of the sporangium in some mosses【植】（一些藓类植物的）蒴托。
1.2
- 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。
派生词
apophyseal
adjective词源
late 16th cent.: modern Latin， from Greek apophusis 'offshoot'， from apo- 'from， away' + phusis 'growth'.