— gibbously, gibbosely , adv. — gibbousness, gibboseness , n.
/gib"euhs/ , adj.
1. Astron. (of a heavenly body) convex at both edges, as the moon when more than half full. See diag. under moon .
2. humpbacked.
Also, gibbose /gib"ohs/ .
[ 1350-1400; ME gibbosus humped, equiv. to gibb ( a ) hump + -osus -OUS ]