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A stringled instrument, lutelike in shape, in which the sound is produced by the friction of a wheel turned by a crank at the end, instead of by a bow, two of the strings being tuned as drones, while two or more, tuned in unison, are modulated by keys.

An instrument for tracing designs on glass.

An ancient musical instrument played by the action of water; a water organ. [Written also hydraulis.]

An instrument for determining the depth of the sea water by its pressure.

An instrument to measure the velocity of a liquid current by the force of its impact.

An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc.

An instrument for determining and recording the quantity of water discharged from a pipe, orifice, etc., in a given time.

An instrument used for the purpose of obtaining specimens of water from any desired depth, as in a river, a lake, or the ocean.

An instrument designed to mark the presence of water, especially in air. Weale.

An instrument for recording automatically the variations of the humidity of the atmosphere.

An instrument for measuring the degree of moisture of the atmosphere. Daniell's hygrometer, a form of hygrometer consisting of a bent glass tube terminating in two bulbs, the one covered with muslin, the other of black glass, and containing ether and a thermometer. Ether being poured on the muslin, the black ball, cool…

of the humidity of bodies, particularly of the atmosphere, with the theory and use of the instruments constructed for this purpose.

An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount.

An instrument for ascertaining the susceptibility of a person to hypnotic influences.

An instrument for measuring heights by observation of barometric pressure; esp., one for determining heights by ascertaining the boiling point of water. It consists of a vessel for water, with a lamp for heating it, and an inclosed thermometer for showing the temperature of ebullition.

ffinus gelidus) of the Antarctic seas, abundant among floating ice. -- Ice pick, a sharp instrument for breaking ice into small pieces. -- Ice pilot, a pilot who has charge of a vessel where the course is obstructed by ice, as in polar seas; -- called also ice master. -- Ice pitcher, a pitcher adapted for ice water.…

That which fulfills or supplies a want or use; esp., an instrument, toll, or utensil, as supplying a requisite to an end; as, the implements of trade, of husbandry, or of war. Genius must have talent as its complement and implement. Coleridge.

which falsehood and forgery are proved; an action brought for the purpose of having some instrument declared false or forged. Bell.

ite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.

Not instrument (to); not appropriate; unbecoming; unsuitable; not specially fitted; -- followed by to or for. -- In`ap*pro"pri*ate*ly, adv. -- In`ap*pro"pri*ate*ness, n.