la·cus·trine /ləˈkʌstrən/
  (a.)湖泊的,湖上的
  La·cus·tral La·cus·trine a.  Found in, or pertaining to, lakes or ponds, or growing in them; as, lacustrine flowers.
  Lacustrine deposits Geol., the deposits which have been accumulated in fresh-water areas.
  Lacustrine dwellings. See Lake dwellings, under Lake.
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  lacustrine
       adj : of or relating to or living near lakes