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y walking, dancing, or the like. " I am resolved to forsake Malta, tread a pilgrimage to fair Jerusalem." Beau. & Fl. They have measured many a mile, To tread a measure with you on this grass. Shak.

A knot, braid, or plait of hair. [Obs.] B. Jonson.

A thing of very little value or importance; a paltry, or trivial, affair. With such poor trifles playing. Drayton. Trifles light as air Are to the jealous confirmation strong As proofs of holy writ. Shak. Small sands the mountain, moments make year, And frifles life. Young.

rough water-bearing ground, in which the shaft is lined with tubbing and provided with an air lock, work being proceeded with under air pressure.

n which each measure is divided into three equal parts. -- Triple valve, in an automatic air brake for railroad cars, the valve under each car, by means of which the brake is controlled by a change of pressure in the air pipe leading from the locomotive.

A blowing apparatus, in which air, drawn into the upper part of a vertical tube through side holes by a stream of water within, is carried down with the water into a box or chamber below which it is led to a furnace. [Written also trompe, and trombe.]

ox, pipe, or conductor, made of plank or metal plates, for various uses, as for conveying air to a mine or to a furnace, water to a mill, grain to an elevator, etc. Trunk engine, a marine engine, the piston rod of which is a trunk. See Trunk, 10. -- Trunk hose, large breeches formerly worn, reaching to the knees. --…

The act of a hawk, or other bird of prey, in seizing its quarry, and soaring with it into air. [Obs.]

auscultation over the lungs in certain cases of disease, resembling that produced by the air passing through the trachea. -- Tubular bridge, a bridge in the form of a hollow trunk or tube, made of iron plates riveted together, as the Victoria bridge over the St. Lawrence, at Montreal, Canada, and the Britannia bridge…

instruments in unison, or two or more such series forming parts in harmony; a melody; an air; as, a merry tune; a mournful tune; a slow tune; a psalm tune. See Air.

A tuft, as of grass, twigs, hair, or the like; especially, a dense tuft or bunch of grass or sedge. Such laying of the hair in tussocks and tufts. Latimer.

One of the naked, inflatable air sacs on the neck of the prairie chicken and other species of grouse.

Not adulterated; pure. "Unadulterate air." Cowper. -- Un`a*dul"ter*ate*ly, adv.

To move in, or have, undulations or waves; to vibrate; to wave; as, undulating air.

undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.

he undulations are supposed to take place, not in the direction of propagation, as in the air waves constituting sound, but transversely, and the various phenomena of refraction, polarization, interference, etc., are attributable to the different affections of these undulations in different circumstances of propagation…

or error or failure certain; sure; unfailing; as, the unerring wisdom of God. Hissing in air the unerring weapon flew. Dryden.

The ventilating shaft of a mine out of which the air passes after having circulated through the mine; -- distinguished from the downcast. Called also upcast pit, and upcast shaft.

Proud; arrogant; assuming; putting on airs of superiority. [Colloq.] T. Brown. -- Up"pish*ly, adv. [Colloq.] -- Up"pish*ness, n. [Colloq.]

A spring or leap into the air. [R.] Chapman.