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The action of a horse, when, to get rid of his rider, he rears, plunges, and kicks furiously.

The osprey (Pandion haliaëtus), found both in Europe and America; -- so called because it plunges into the water and seizes fishes in its talons. Called also fishing eagle, and bald buzzard.

A pump having a solid piston, or plunger, for drawing and forcing a liquid, as water, through the valves; in distinction from a pump having a bucket, or valved piston.

A fall or plunge headforemost, as while riding a bicycle, or in bathing; as, to take a header. [Colloq.]

tatic 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 hydrostatic bellows. Also called hydraulic p…

To plungel into, under, or within anything especially a fuid; to dip; to immerse. See Immerse. We took . . . lukewarm water, and in it immerged a quantity of the leaves of senna. Boyle. Their souls are immerged in matter. Jer. Taylor.

To plunge into anything that surrounds or covers, especially into a fluid; to dip; to sink; to bury; to immerge. Deep immersed beneath its whirling wave. J Warton. More than a mile immersed within the wood. Dryden.

Deeply plunged into anything, especially a fluid.

ed in the ground; to fall in love; to end in death; to put our trust in God. He would not plunge his brother in despair. Addison. She had no jewels to deposit in their caskets. Fielding.

lief. Fierce sectarianism bred fierce latitudinarianism. De Quincey. He [Ammonius Saccas] plunged into the wildest latitudinarianism of opinion. J. S. Harford.

To move with force and swiftness like a sliding from the stocks into the water; to plunge; to make a beginning; as, to launch into the current of a stream; to launch into an argument or discussion; to launch into lavish expenditures; -- often with out. Launch out into the deep, and let down your nets for a draught. Luk…

the other end. The mirror is pivoted so that it can be moved in one direction by a small plunger operated by an elastic metal diaphragm which closes a tube connected with the engine cylinder. It is also moved at right angles to this direction by a reducing motion, called a reproducer, so as to copy accurately on a sma…

To cause or permit to stick fast in mire; to plunge or fix in mud; as, to mire a horse or wagon.

To plunge or fall; esp., to fall forward; to decline or slope; as, to pitch from a precipice; the vessel pitches in a heavy sea; the field pitches toward the east. Pitch and pay, an old aphorism which inculcates ready-money payment, or payment on delivery of goods. Shak.

To force, drive, or plunge into anything. [Obs.] His horse poching one of his legs into some hollow ground. Sir W. Temple.

conical recess in the seat when the valve is closed. See the valves shown in Illusts. of Plunger pump, and Safety valve, under Plunger, and Safety.

The plunger of a hydraulic press. Ram's horn. (a) (Fort.) A low semicircular work situated in and commanding a ditch. [Written also ramshorn.] Farrow. (b) (Paleon.) An ammonite.

To plunge or immerse in water or any liquid. They soused me over head and ears in water. Addison.

The rod to which the bucket, or plunger, of a pump is attached; a pump rod. Spear foot, the off hind foot of a horse. -- Spear grass. (Bot.) (a) The common reed. See Reed, n., 1. (b) meadow grass. See under Meadow. -- Spear hand, the hand in which a horseman holds a spear; the right hand. Crabb. -- Spear side, the m…

To plunge into mire or snow so as not to be able to get on; to set; to fix; as, to stall a cart. Burton. His horses had been stalled in the snow. E. E. Hale.