DIAPHANOUS Meaning of DIAPHANOUS in English [ dʌɪ'af(ə)nəs ]■ adjective (of fabric) light, delicate, and translucent.OriginC17: from med. L. diaphanus , from Gk diaphanēs , from dia 'through' + phainein 'to show'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004