hyaline Syllabification: (hy·a·line)Pronunciation: /ˈhīəlin, -ˌlīn/Definition of hyaline adjective Anatomy & Zoology having a glassy, translucent appearance. relating to, consisting of, or characterized by hyaline material. noun 1 (the hyaline) literary a thing that is clear and translucent like glass, especially a smooth sea or a clear sky. 2another term for hyalin.Origin: mid 17th century: from Latin hyalinus (see hyalin)hyaline in other Oxford dictionaries Definition of hyaline in the British & World English dictionary