Bombardier \Bom`bar*dier"\, n. [F. bombardier.] (Mil.)
(a) One who used or managed a bombard; an artilleryman; a
gunner. [Archaic]
(b) A noncommissioned officer in the British artillery.
[1913 Webster]
{Bombardier beetle} (Zool.), a kind of beetle ({Brachinus
crepitans}), so called because, when disturbed, it makes
an explosive discharge of a pungent and acrid vapor from
its anal glands. The name is applied to other related
species, as the {Brachinus displosor}, which can produce
ten or twelve explosions successively. The common American
species is {Brachinus fumans}.
[1913 Webster]