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That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate. Claus & Sedgwick.

fasten as by a hook or a knot; to make fast, unite, or yoke; as, to hitch a horse, or a halter.

A choice without an alternative; the thing offered or nothing.

A sheep or colt alter it has passed its first year.

ing of the valve a by its own weight allows another rush through the main pipe, and so on alternately. -- Hydraulic valve. (Mach.) (a) A valve for regulating the distribution of water in the cylinders of hydraulic elevators, cranes, etc. (b) (Gas Works) An inverted cup with a partition dipping into water, for opening…

Steadfast; fixed; unalterable; unchangeable; -- used of the mind or will; as, an immovable purpose, or a man who remain immovable.

Not mutable; not capable or susceptible of change; unchangeable; unalterable. That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation. Heb. vi. 18. Immutable, immortal, infinite, Eternal King. Milton. -- Im*mu"ta*ble*ness, n. -- Im*mu"ta*bly, adv.

Change; alteration; mutation. [R.] Dr. H. More.

To change or alter. [Obs.] J. Salkeld.

The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2pfL, where f =…

with a different color, as the feathers of some birds. Indented line (Fort.), a line with alternate long and short faces, with salient and receding angles, each face giving a flanking fire along the front of the next.

machine built as an induction motor and driven above synchronous speed, thus acting as an alternating-current generator; - - called also asynchronous generator. Below synchronism the machine takes in electrical energy and acts as an induction motor; at synchronism the power component of current becomes zero and changes…

A type of alternating-current motor comprising two wound members, one stationary, called the stator, and the other rotating, called the rotor, these two members corresponding to a certain extent to the field and armature of a direct-current motor.

Unevenness; want of levelness; the alternate rising and falling of a surface; as, the inequalities of the surface of the earth, or of a marble slab, etc. The country is cut into so many hills and inequalities as renders it defensible. Addison.

Firm in will or purpose; not to be turned, changed, or altered; resolute; determined; unyieding; inexorable; stubborn. "Inflexibleas steel." Miltom. Amanof upright and inflexibletemper . . . can overcome all private fear. Addison.

To change or alter by introducing something new; to remodel; to revolutionize. [Archaic] Burton. From his attempts upon the civil power, he proceeds to innovate God's worship. South.

any from of government becomes destructive of these ends it is the right of the people to alter or to abolish it, and to institute a new government. Jefferson (Decl. of Indep. ).

ich the manifold is compacted into the relatively simple and permanent. It is supposed to alternate with differentiation as an agent in development.

To cause to follow alternately; to intermingle; to vary; as, to interchange cares with pleasures.

Following each other in alternate succession; as, the four interchangeable seasons. Holder. -- In`ter*change"a*ble*ness, n. -- In`ter*change"a*bly, adv.