Search the Dictionary

s are found in the Western United States. See Calliope, and Ruby-throat. -- Humming-bird moth (Zoöl.), a hawk moth. See Hawk moth, under Hawk, the bird.

The act of hurrying in motion or business; pressure; urgency; bustle; confusion. Ambition raises a tumult in the soul, it inflames the mind, and puts into a violent hurry of thought. Addison.

Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock. Hydraulic accumulator, an accumulator for hydraulic machinery of any kind. See Accumulator, 2. -- Hydraulic brake, a cataract. See Cataract, 3. -- Hydraulic cement, a cement or mortar made o…

That branch of science, or of engineering, which treats of fluids in motion, especially of water, its action in rivers and canals, the works and machinery for conducting or raising it, its use as a prime mover, and the like.

that enables it to travel on, or to rise from the surface of, a body of water by its own motive power.

to water power. Hydrodynamic friction, friction produced by the viscosity of a liquid in motion.

of mechanics which relates to fluids, or, as usually limited, which treats of the laws of motion and action of nonelastic fluids, whether as investigated mathematically, or by observation and experiment; the principles of dynamics, as applied to water and other fluids.

Of or pertaining to the motions of fluids, or the forces which produce or affect such motions; -- opposed to hydrostatic. Sir W. Thomson.

physics which treats of the mechanics of liquids, or of their laws of equilibrium and of motion.

luids in all directions. -- Hydrostatic press, a machine in which great force, with slow motion, is communicated to a large plunger by means of water forced into the cylinder in which it moves, by a forcing pump of small diameter, to which the power is applied, the principle involved being the same as in the hydrostat…

An order of marsipobranchs including the lampreys. The suckerlike moth contains numerous teeth; the nasal opening is in the middle of the head above, but it does not connect with the mouth. See Cyclostoma, and Lamprey.

does not feel; a dissimulation, or a concealment of one's real character, disposition, or motives; especially, the assuming of false appearance of virtue or religion; a simulation of goodness. Hypocrisy is the necessary burden of villainy. Rambler. Hypocrisy is the homage vice pays to virtue. La Rochefoucauld (Trans. )…

old. Icy was the deportment with which Philip received these demonstrations of affection. Motley.

An ideo-motor movement.

Applied to those actions, or muscular movements, which are automatic expressions of dominant ideas, rather than the result of distinct volitional efforts, as the act of expressing the thoughts in speech, or in writing, while the mind is occupied in the composition of the sentence. Carpenter.

ansmit power. -- Idle wheel (Mach.), a gear wheel placed between two others, to transfer motion from one to the other without changing the direction of revolution. -- In idle, in vain. [Obs.] "God saith, thou shalt not take the name of thy Lord God in idle." Chaucer.

polyphonic composition; the repetition of essentially the same melodic theme, phrase, or motive, on different degrees of pitch, by one or more of the other parts of voises. Cf. Canon.

The single instantaneous stroke of a body in motion against another either in motion or at rest.

mpropriety; to dishonor; to bring discredit on; to call in question; as, to impeach one's motives or conduct. And doth impeach the freedom of the state. Shak.

A calling in question as to purity of motives, rectitude of conduct, credibility, etc.; accusation; reproach; as, an impeachment of motives. Shak.