ramus
Concise Oxford English Dictionary © 2008 Oxford University Press:
ramus /ˈreɪməs/
▶noun (pl. rami /ˈreɪmʌɪ, ˈreɪmiː/)
- 1 Anatomy & Zoology a projecting structure, especially a branch of a bone or nerve.
- 2 Ornithology a barb of a feather.
– origin C17: from L., lit. ‘branch’.
'ramus' also found in these Oxford entries:

