Wall \Wall\, n. [AS. weall, from L. vallum a wall, vallus a
stake, pale, palisade; akin to Gr. ? a nail. Cf. Interval.]
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1. A work or structure of stone, brick, or other materials,
raised to some height, and intended for defense or
security, solid and permanent inclosing fence, as around a
field, a park, a town, etc., also, one of the upright
inclosing parts of a building or a room.
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The plaster of the wall of the King's palace. --Dan.
v. 5.
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2. A defense; a rampart; a means of protection; in the
plural, fortifications, in general; works for defense.
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The waters were a wall unto them on their right
hand, and on their left. --Ex. xiv. 22.
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In such a night,
Troilus, methinks, mounted the Troyan walls. --Shak.
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To rush undaunted to defend the walls. --Dryden.
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3. An inclosing part of a receptacle or vessel; as, the walls
of a steam-engine cylinder.
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4. (Mining)
(a) The side of a level or drift.
(b) The country rock bounding a vein laterally. --Raymond.
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Note: Wall is often used adjectively, and also in the
formation of compounds, usually of obvious
signification; as in wall paper, or wall-paper; wall
fruit, or wall-fruit; wallflower, etc.
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Blank wall, Blind wall, etc. See under Blank, Blind,
etc.
To drive to the wall, to bring to extremities; to push to
extremes; to get the advantage of, or mastery over.
To go to the wall, to be hard pressed or driven; to be the
weaker party; to be pushed to extremes.
To take the wall. to take the inner side of a walk, that
is, the side next the wall; hence, to take the precedence.
"I will take the wall of any man or maid of Montague's."
--Shak.
Wall barley (Bot.), a kind of grass (Hordeum murinum)
much resembling barley; squirrel grass. See under
Squirrel.
Wall box. (Mach.) See Wall frame, below.
Wall creeper (Zool.), a small bright-colored bird
(Tichodroma muraria) native of Asia and Southern Europe.
It climbs about over old walls and cliffs in search of
insects and spiders. Its body is ash-gray above, the wing
coverts are carmine-red, the primary quills are mostly red
at the base and black distally, some of them with white
spots, and the tail is blackish. Called also spider
catcher.
Wall cress (Bot.), a name given to several low cruciferous
herbs, especially to the mouse-ear cress. See under
Mouse-ear.
Wall frame (Mach.), a frame set in a wall to receive a
pillow block or bearing for a shaft passing through the
wall; -- called also wall box.
Wall fruit, fruit borne by trees trained against a wall.
Wall gecko (Zool.), any one of several species of Old World
geckos which live in or about buildings and run over the
vertical surfaces of walls, to which they cling by means
of suckers on the feet.
Wall lizard (Zool.), a common European lizard (Lacerta
muralis) which frequents houses, and lives in the chinks
and crevices of walls; -- called also wall newt.
Wall louse, a wood louse.
Wall moss (Bot.), any species of moss growing on walls.
Wall newt (Zool.), the wall lizard. --Shak.
Wall paper, paper for covering the walls of rooms; paper
hangings.
Wall pellitory (Bot.), a European plant (Parictaria
officinalis) growing on old walls, and formerly esteemed
medicinal.
Wall pennywort (Bot.), a plant (Cotyledon Umbilicus)
having rounded fleshy leaves. It is found on walls in
Western Europe.
Wall pepper (Bot.), a low mosslike plant (Sedum acre)
with small fleshy leaves having a pungent taste and
bearing yellow flowers. It is common on walls and rocks in
Europe, and is sometimes seen in America.
Wall pie (Bot.), a kind of fern; wall rue.
Wall piece, a gun planted on a wall. --H. L. Scott.
Wall plate (Arch.), a piece of timber placed horizontally
upon a wall, and supporting posts, joists, and the like.
See Illust. of Roof.
Wall rock, granular limestone used in building walls. [U.
S.] --Bartlett.
Wall rue (Bot.), a species of small fern (Asplenium
Ruta-muraria) growing on walls, rocks, and the like.
Wall spring, a spring of water issuing from stratified
rocks.
Wall tent, a tent with upright cloth sides corresponding to
the walls of a house.
Wall wasp (Zool.), a common European solitary wasp
(Odynerus parietus) which makes its nest in the crevices
of walls.
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