The Collaborative International Dictionary
Chondro-
Chondro- \Chon"dro-\ [Gr. ? a grain (of wheat or spelt), cartilage.] A combining form meaning a grain, granular, granular cartilage, cartilaginous; as, the chondrocranium, the cartilaginous skull of the lower vertebrates and of embryos.
Douglas Harper's Etymology Dictionary
chondro-
word-forming element meaning "cartilage," from Latinized form of Greek khondros "cartilage" (of the breastbone); see grind (v.).
Wiktionary
chondro-
pre. 1 (n-g: Describing something relating to grains or having a granular structure.) 2 (n-g: Describing something composed of cartilage.)