Vault \Vault\ (v[add]lt; see Note, below), n. [OE. voute, OF.
voute, volte, F. vo[^u]te, LL. volta, for voluta, volutio,
fr. L. volvere, volutum, to roll, to turn about. See
Voluble, and cf. Vault a leap, Volt a turn, Volute.]
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1. (Arch.) An arched structure of masonry, forming a ceiling
or canopy.
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The long-drawn aisle and fretted vault. --Gray.
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2. An arched apartment; especially, a subterranean room, used
for storing articles, for a prison, for interment, or the
like; a cell; a cellar. "Charnel vaults." --Milton.
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The silent vaults of death. --Sandys.
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To banish rats that haunt our vault. --Swift.
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3. The canopy of heaven; the sky.
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That heaven's vault should crack. --Shak.
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4. [F. volte, It. volta, originally, a turn, and the same
word as volta an arch. See the Etymology above.] A leap or
bound. Specifically:
(a) (Man.) The bound or leap of a horse; a curvet.
(b) A leap by aid of the hands, or of a pole, springboard,
or the like.
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Note: The l in this word was formerly often suppressed in
pronunciation.
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Barrel vault, Cradle vault, Cylindrical vault, or
Wagon vault (Arch.), a kind of vault having two parallel
abutments, and the same section or profile at all points.
It may be rampant, as over a staircase (see Rampant
vault, under Rampant), or curved in plan, as around the
apse of a church.
Coved vault. (Arch.) See under 1st Cove, v. t.
Groined vault (Arch.), a vault having groins, that is, one
in which different cylindrical surfaces intersect one
another, as distinguished from a barrel, or wagon, vault.
Rampant vault. (Arch.) See under Rampant.
Ribbed vault (Arch.), a vault differing from others in
having solid ribs which bear the weight of the vaulted
surface. True Gothic vaults are of this character.
Vault light, a partly glazed plate inserted in a pavement
or ceiling to admit light to a vault below.
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Barrel \Bar"rel\ (b[a^]r"r[e^]l), n.[OE. barel, F. baril, prob.
fr. barre bar. Cf. Barricade.]
1. A round vessel or cask, of greater length than breadth,
and bulging in the middle, made of staves bound with
hoops, and having flat ends or heads; as, a cracker
barrel. Sometimes applied to a similar cylindrical
container made of metal, usually called a drum.
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2. The quantity which constitutes a full barrel. This varies
for different articles and also in different places for
the same article, being regulated by custom or by law. A
barrel of wine is 311/2 gallons; a barrel of flour is 196
pounds.
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3. A solid drum, or a hollow cylinder or case; as, the barrel
of a windlass; the barrel of a watch, within which the
spring is coiled.
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4. A metallic tube, as of a gun, from which a projectile is
discharged. --Knight.
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5. A jar. [Obs.] --1 Kings xvii. 12.
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6. (Zool.) The hollow basal part of a feather.
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Barrel bulk (Com.), a measure equal to five cubic feet,
used in estimating capacity, as of a vessel for freight.
Barrel drain (Arch.), a drain in the form of a cylindrical
tube.
Barrel of a boiler, the cylindrical part of a boiler,
containing the flues.
Barrel of the ear (Anat.), the tympanum, or tympanic
cavity.
Barrel organ, an instrument for producing music by the
action of a revolving cylinder.
Barrel vault. See under Vault.
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