Search the Dictionary

The act of pouring into a vessel; specif. (Med.), the operation of introducing a substance into a blood vessel; as, intrafusion of blood.

Opposite in nature and effect; -- said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division. The symbol of an inverse operation is the symbol of the direct operation with -1 as an index. Thu…

The act or process of irrigating, or the state of being irrigated; especially, the operation of causing water to flow over lands, for nourishing plants.

epresent the pressures corresponding to changes of temperature when the volume of the gas operated on is constant. -- I`so*chor"ic (#), a.

any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack.

The act of judging; the operation of the mind, involving comparison and discrimination, by which a knowledge of the values and relations of thins, whether of moral qualities, intellectual concepts, logical propositions, or material facts, is obtained; as, by careful judgment he avoided the peril; by a series of wrong j…

Twin; paired; -- said of various objects made or formed in pairs, as a binocular opera glass, a pair of gimmal rings, etc.

An instrument for dividing the cornea in operations for cataract.

The operation of removing a cataract by thrusting a needle through the cornea of the eye, and breaking up the opaque mass.

n; usually, a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place.

See Knop. Knob latch, a latch which can be operated by turning a knob, without using a key.

Formed or pronounced by the cooperation of the lips and teeth, as f and v. -- n.

A plastic operation for making a new lip, or for replacing a lost tissue of a lip.

biological laboratory. Hence, by extension, a place where something is prepared, or some operation is performed; as, the liver is the laboratory of the bile.

use filled with a composition which burns with a suffocating odor; -- used in the counter operations of miners. To break a lance, to engage in a tilt or contest.

Of or pertaining to the larynx; adapted to operations on the larynx; as, laryngeal forceps.

The operation of cutting into the larynx, from the outside of the neck, for assisting respiration when obstructed, or for removing foreign bodies.

The operation of cutting into the larynx and the upper part of the trachea, -- a frequent operation for obstruction to breathing.

eadle worked by the foot. -- Geometric lathe. See under Geometric -- Hand lathe, a lathe operated by hand; a power turning lathe without an automatic feed for the tool. -- Slide lathe, an engine lathe. -- Throw lathe, a small lathe worked by one hand, while the cutting tool is held in the other.

out; to start (one) on a career; to set going; to give a start to (something); to put in operation; as, to launch a son in the world; to launch a business project or enterprise. All art is used to sink episcopacy, and launch presbytery in England. Eikon Basilike.