Gibbartas \Gib*bar"tas\, n. [Cf. Ar. jebb[=a]r giant; or L.
gibber humpbacked: cf. F. gibbar.] (Zool.)
One of several finback whales of the North Atlantic; --
called also {Jupiter whale}. [Written also {jubartas},
{gubertas}, {dubertus}.]
[1913 Webster]