LACUSTRINE Meaning of LACUSTRINE in English [ lə'kʌstrʌɪn , -trɪn ]■ adjective technical or literary relating to lakes.OriginC19: from L. lacus 'lake' (the stem lacustr- influenced by L. palustris 'marshy') + -ine 1 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004