antrum
Concise Oxford English Dictionary © 2008 Oxford University Press:
antrum /ˈantrəm/
▶noun (pl. antra /-trə/) Anatomy
- 1 a natural chamber or cavity in a bone.
- 2 the pyloric end of the stomach.
– derivatives
antral adjective.
antral adjective.
– origin C19: from L., from Gk antron ‘cave’.
'antrum' also found in these Oxford entries:

