| 释义 |
phrag·mo·cone
noun
also phrag·ma·cone \ˈfragməˌkōn\
(-s)
Etymology: phragmocone International Scientific Vocabulary phragmo- (from Greek phragmos fence, fencing in, from phrassein, phrattein to enclose, fence in) + cone; phragmacone International Scientific Vocabulary phragma- (from Greek phragma fence) + cone
: the thin conical chambered internal shell of a belemnite that is either straight or curved, is produced in front into a very thin process resembling a blade or leaf, and fits behind into a deep cavity in the anterior end of the guard
• phrag·mo·con·ic \| ̷ ̷ ̷ ̷|känik\ adjective |