• (a.) Growing or developing within cartilage; -- applied esp. to developing bone.
(en″do-kon´drәl) situated, formed, or occurring within cartilage.
En`do·chon'dral adjective [ Endo- + Greek ... cartilage.] (Physiol.) Growing or developing within cartilage; -- applied esp. to developing bone. 
Type: Term Pronunciation: en′dō-kon′drăl Synonyms: intracartilaginous
Endochondral refers to the growing or developing within cartilage. The term is especially applied to developing bone.