From WordNet (r) 2.0 (August 2003) [wn]:
Seine
n 1: a French river that flows through the heart of Paris and
then northward into the English Channel [syn: Seine,
Seine River]
2: a large fishnet that hangs vertically, with floats at the
top and weights at the bottom
v : fish with a seine; catch fish with a seine
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Seine \Seine\, n. [F. seine, or AS. segene, b?th fr. L. sagena,
Gr. ????.] (Fishing.)
A large net, one edge of which is provided with sinkers, and
the other with floats. It hangs vertically in the water, and
when its ends are brought together or drawn ashore incloses
the fish.
[1913 Webster]
Seine boat, a boat specially constructed to carry and pay
out a seine.
[1913 Webster]