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2. [F. mortier, fr. L. mortarium
mortar (for trituarating).] (Mil.) A short piece of
ordnance, used for throwing bombs, carcasses, shells, etc., at high
angles of elevation, as 45°, and even higher; -- so named from
its resemblance in shape to the utensil above described.

Mortar bed (Mil.), a framework of
wood and iron, suitably hollowed out to receive the breech and
trunnions of a mortar. -- Mortar boat or
vessel (Naut.), a boat strongly built
and adapted to carrying a mortar or mortars for bombarding; a bomb
ketch. -- Mortar piece, a mortar.
[Obs.] Shak.

Mor"tar, n. [OE. mortier, F.
mortier, L. mortarium mortar, a large basin or trough
in which mortar is made, a mortar (in sense 1, above). See 1st
Mortar.] (Arch.) A building material made by
mixing lime, cement, or plaster of Paris, with sand, water, and
sometimes other materials; -- used in masonry for joining stones,
bricks, etc., also for plastering, and in other ways.

Mortar bed, a shallow box or receptacle in
which mortar is mixed.


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