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To produce, by sudden cooling, a change of crystallization at or near the surface of, so as to increase the hardness; said of cast iron.

Making choices; fickle. [Obs.] His choiceful sense with every change doth fit. Spenser.

ductance, used in an alternating-current circuit to impede or throttle the current, or to change its phase; --called also reactance coil or reactor, these terms being now preferred in engineering usage.

To exchange; substitute one thing for another. We go on chopping and changing our friends. L'Estrange. To chop logic, to dispute with an affected use of logical terms; to argue sophistically.

An exchanger or an exchange of benefices. [Cant]

Pertaining to a chorepiscopus or his change or authority.

vesicle containing liquid pigment and capable of changing its form or size, thus causing changes of color in the translucent skin of such animals as possess them. They are highly developed and numerous in the cephalopods.

er of Sol and Perseis, a mythological enchantress, who first charmed her victims and then changed them to the forms of beasts; pleasing, but noxious; as, a Circean draught.

Having the form of a circle; round. "Monthly changes in her circled orb." Shak.

ler in size and more dense and fibrous in consistence; hence sometimes applied to similar changes in other organs, caused by increase in the fibrous framework and decrease in the proper substance of the organ.

A change-speed gear in which the gears are changed by sliding endwise.

To make exchanges of checks and bills, and settle balances, as is done in a clearing house.

A method adopted by banks and bankers for making an exchange of checks held by each against the others, and settling differences of accounts.

A period in human life in which some great change is supposed to take place in the constitution. The critical periods are thought by some to be the years produced by multiplying 7 into the odd numbers 3, 5, 7, and 9; to which others add the 81st year.

Connected with, or related to, the deluge, or to a cataclysm; as, clysmian changes. Smart.

To cause (a liquid) to change into a curdlike or semisolid state, not by evaporation but by some kind of chemical reaction; to curdle; as, rennet coagulates milk; heat coagulates the white of an egg.

Changed into, or contained in, a coagulum or a curdlike mass; curdled. Coagulated proteid (Physiol. Chem.), one of a class of bodies formed in the coagulation of a albuminous substance by heat, acids, or other agents.

The change from a liquid to a thickened, curdlike, insoluble state, not by evaporation, but by some kind of chemical reaction; as, the spontaneous coagulation of freshly drawn blood; the coagulation of milk by rennet, or acid, and the coagulation of egg albumin by heat. Coagulation is generally the change of an albumin…

The change which the humorists believed morbific matter undergoes before elimination. [Obs.] Dunglison.

A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction. Arbitrary coefficient (Math.), a literal coefficient placed arbitrarily in an algebrai…