The Collaborative International Dictionary of English v.0.48:
Chondroma \Chon*dro"ma\, n.; pl. Chondromata. [NL., fr. Gr. ? cartilage + -oma.] A cartilaginous tumor or growth. [1913 Webster]WordNet (r) 3.0 (2006):
chondroma n 1: a common benign tumor of cartilage cells