/kahr'tl aj"euh neuhs/ , adj.
1. of or resembling cartilage.
2. having a skeleton composed either entirely or mainly of cartilage, as vertebrates of the class Chondrichthyes, which includes the sharks, rays, and skates.
[ 1375-1425; late ME cartilaginosus, equiv. to cartilagin- (s. of cartilago ) CARTILAGE + -osus -OUS ]