The Collaborative International Dictionary of English v.0.48:
hyalin \hyalin\ n. a glassy translucent material that occurs in hyaline cartilage or in certain skin conditions. Syn: hyaline. [WordNet 1.5]WordNet (r) 3.0 (2006):
hyalin n 1: a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions [syn: hyaline, hyalin]