D defs.my
Entry 2 senses Webster, 1913

Cartilaginous

· Car·ti·lag·i·nous · IPA /ˌkɑɹ.təˈlæd͡ʒ.ən.əs/
01 a. Of or pertaining to cartilage; gristly; firm and tough like cartilage.
  1. 1.
    Of or pertaining to cartilage; gristly; firm and tough like cartilage.
  2. 2.
    Having the skeleton in the state of cartilage, the bones containing little or no calcareous matter; said of certain fishes, as the sturgeon and the sharks.(Zool.)