Learn how to say Lacustrine correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word lacustrine:
technical or literary
relating to or associated with lakes:
fluvial and lacustrine deposits
the boulders were beautiful in their lacustrine tranquillity
early 19th century: from Latin lacus ‘lake’ (the stem lacustr- influenced by Latin palustris ‘marshy’) + -ine1