from
The Collaborative International Dictionary of English v.0.48
Gar \Gar\, n. [Prob. AS. g[=a]r dart, spear, lance. The name is
applied to the fish on account of its long and slender body
and pointed head. Cf. {Goad}, {Gore}, v.] (Zool.)
(a) Any slender marine fish of the genera {Belone} and
{Tylosurus}. See {Garfish}.
(b) The gar pike. See {Alligator gar} (under {Alligator}),
and {Gar pike}.
[1913 Webster]
{Gar pike}, or {Garpike} (Zool.), a large, elongated ganoid
fish of the genus {Lepidosteus}, of several species,
inhabiting the lakes and rivers of temperate and tropical
America.
[1913 Webster]