Webster's Revised Unabridged Dictionary · 1913

Lacustral

Lacustral , adjective

[Latin lacus lake: compare French lacustral, lacustre.]

Found in, or pertaining to, lakes or ponds, or growing in them; as, lacustrine flowers.
Collocations (2)
Lacustrine deposits (Geology) , the deposits which have been accumulated in fresh-water areas.
Lacustrine dwellings , See Lake dwellings, under Lake.

Also: Lacustrine