HYALIN Meaning of HYALIN in English [ 'hʌɪəlɪn ]■ noun Physiology a clear substance produced especially by the degeneration of epithelial or connective tissues.OriginC19: via L. from Gk hualinos , from hualos 'glass'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004