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The act or operation of cleansing.

table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.

n contradistinction to mental or moral science. -- Natural selection (Biol.), a supposed operation of natural laws analogous, in its operation and results, to designed selection in breeding plants and animals, and resulting in the survival of the fittest. The theory of natural selection supposes that this has been bro…

inder which is continuous the whole length of the fiber. -- Nerve stretching (Med.), the operation of stretching a nerve in order to remedy diseases such as tetanus, which are supposed to be influenced by the condition of the nerve or its connections.

To produce or gain as clear profit; as, he netted a thousand dollars by the operation.

An instrument for determining and registering the duration of more or less complex operations of the mind. Dunglison.

igures, letters, and signs used in arithmetic and algebra to express number, quantity, or operations.

or narrative, professing to be conformed to real life; esp., one intended to exhibit the operation of the passions, and particularly of love. Dryden.

To yield to the impulse, power, or operation of; as, a ship obeys her helm.

The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse. Sir J. Herschel.

The operation of dividing the navel-string.

The act of operating or working; operation. [R.]

The symbol, quantity, or thing upon which a mathematical operation is performed; -- called also faciend.

To put into, or to continue in, operation or activity; to work; as, to operate a machine.

Based upon, or consisting of, an operation or operations; as, operative surgery.

The symbol that expresses the operation to be performed; -- called also facient.

The operation of cutting out or removing a testicle by the knife; castration.

The operation of breaking a bone in order to correct deformity.

Of or pertaining to the replacement of bone; as, an osteoplastic operation.

An operation or process by which the total or partial loss of a bone is remedied. Dunglison.