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A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air of force in into a closed space.

A lateral division of a building, separated from the middle part, called the nave, by a row of columns or piers, which support the roof or an upper wall containing windows, called the clearstory wall.

Ajowan, used both as a medicine and as a condiment. An oil containing thymol is extracted from it. Called also Javanee seed, Javanese seed, and ajava.

A direction for the performer to return and recommence from the sign

A box or vessel for holding odoriferous ointments, etc.; -- so called from the stone of which it was originally made. Fosbroke.

A white crystalline base, C3H7NO2, derived from aldehyde ammonia.

A mechanical contrivance for awaking persons from sleep, or rousing their attention; an alarum. Alarm bell, a bell that gives notice on danger. -- Alarm clock or watch, a clock or watch which can be so set as to ring or strike loudly at a prearranged hour, to wake from sleep, or excite attention. -- Alarm gauge, a co…

A white crystalline resinous substance extracted from gutta- percha by the action of alcohol or ether.

st of sea birds, capable of long- continued flight, and are often seen at great distances from the land. They are found chiefly in the southern hemisphere.

Whiteness. Specifically: (Astron.) The ratio which the light reflected from an unpolished surface bears to the total light falling upon that surface.

A picture printed from a kind of gelatine plate produced by means of a photographic negative.

f the lower animals, as white mice, elephants, etc.; and of plants in a whitish condition from the absence of chlorophyll. Amer. Cyc.

A diffusible substance formed from albumin by the action of natural or artificial gastric juice. See Peptone.

A compound or class of compounds formed from albumin by dilute acids or by an acid solution of pepsin. Used also in combination, as antialbumose, hemialbumose.

g to Alcæus, a lyric poet of Mitylene, about 6000 b. c. -- n. A kind of verse, so called from Alcæus. One variety consists of five feet, a spondee or iambic, an iambic, a long syllable, and two dactyls.

An oriental shrub (Lawsonia inermis) from which henna is obtained.

A vessel of porous earthenware, used for cooling liquids by evaporation from the exterior surface.

y a liquid containing it in considerable quantity. It is extracted by simple distillation from various vegetable juices and infusions of a saccharine nature, which have undergone vinous fermentation.

Of or pertaining to alcohol, or partaking of its qualities; derived from, or caused by, alcohol; containing alcohol; as, alcoholic mixtures; alcoholic gastritis; alcoholic odor.

A colorless, mobile, and very volatile liquid obtained from alcohol by certain of oxidation.