The Collaborative International Dictionary
Synchondroses
Synchondrosis \Syn`chon*dro"sis\, n.; pl. Synchondroses. [NL., fr. Gr. ?; sy`n with + ? cartilage.] (Anat.) An immovable articulation in which the union is formed by cartilage. -- Syn`chon*dro"si*al, a.
Wiktionary
synchondroses
n. (plural of synchondrosis English)