Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of piston is as below...

Embolus :: Embolus (n.) Something inserted, as a wedge; the piston or sucker of a pump or syringe..

Cornopean :: Cornopean (n.) An obsolete name for the cornet-a-piston.

Indicator :: Indicator (n.) An instrument which draws a diagram showing the varying pressure in the cylinder of an engine or pump at every point of the stroke. It consists of a small cylinder communicating with the engine cylinder and fitted with a piston which the varying pressure drives upward more or less against the resistance of a spring. A lever imparts motion to a pencil which traces the diagram on a card wrapped around a vertical drum which is turned back and forth by a string connected with the pist

Excursion :: Excursion () Length of stroke, as of a piston; stroke. [An awkward use of the word.].

Trumpet :: Trumpet (n.) A wind instrument of great antiquity, much used in war and military exercises, and of great value in the orchestra. In consists of a long metallic tube, curved (once or twice) into a convenient shape, and ending in a bell. Its scale in the lower octaves is limited to the first natural harmonics; but there are modern trumpets capable, by means of valves or pistons, of producing every tone within their compass, although at the expense of the true ringing quality of tone..

Stroke :: Stroke (v. t.) The movement, in either direction, of the piston plunger, piston rod, crosshead, etc., as of a steam engine or a pump, in which these parts have a reciprocating motion; as, the forward stroke of a piston; also, the entire distance passed through, as by a piston, in such a movement; as, the piston is at half stroke..

Inboard :: Inboard (a. & adv.) From without inward; toward the inside; as, the inboard stroke of a steam engine piston, the inward or return stroke..

Beam :: Beam (n.) A heavy iron lever having an oscillating motion on a central axis, one end of which is connected with the piston rod from which it receives motion, and the other with the crank of the wheel shaft; -- called also working beam or walking beam..

Cornet-a-piston :: Cornet-a-piston (n.) A brass wind instrument, like the trumpet, furnished with valves moved by small pistons or sliding rods; a cornopean; a cornet..

Spider :: Spider (n.) A skeleton, or frame, having radiating arms or members, often connected by crosspieces; as, a casting forming the hub and spokes to which the rim of a fly wheel or large gear is bolted; the body of a piston head; a frame for strengthening a core or mold for a casting, etc..

Clearance :: Clearance (n.) The distance by which one object clears another, as the distance between the piston and cylinder head at the end of a stroke in a steam engine, or the least distance between the point of a cogwheel tooth and the bottom of a space between teeth of a wheel with which it engages..

Bucket :: Bucket (n.) The valved piston of a lifting pump.

Cornets-a-piston :: Cornets-a-piston (pl. ) of Cornet-a-pisto.

Chyometer :: Chyometer (n.) An instrument for measuring liquids. It consists of a piston moving in a tube in which is contained the liquid, the quantity expelled being indicated by the graduation upon the piston rod..

Expansion :: Expansion (n.) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston..

Cornet :: Cornet (n.) A brass instrument, with cupped mouthpiece, and furnished with valves or pistons, now used in bands, and, in place of the trumpet, in orchestras. See Cornet-a-piston..

Liner :: Liner (n.) A lining within the cylinder, in which the piston works and between which and the outer shell of the cylinder a space is left to form a steam jacket..

Pallet :: Pallet (n.) One of the series of disks or pistons in the chain pump.

Play :: Play (n.) Motion; movement, regular or irregular; as, the play of a wheel or piston; hence, also, room for motion; free and easy action..

Packing :: Packing (n.) The substance in a stuffing box, through which a piston rod slides..

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