APOPHYSIS
- A natural protuberance from a bone, or inside the shell or exoskeleton of a sea urchin or insect, for the attachment of muscles
- A swelling at the base of the sporangium in some mosses
- A small offshoot extending from an igneous intrusion into the surrounding rock
- a natural swelling or enlargement in a plant [n APOPHYSES]
- an expanded or projecting part of an organism, esp of bone [n APOPHYSES]