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In phylogeny, the evolution of distinct sexes in species previously hermaphrodite or sexless.

. Gorge circle (Gearing), the outline of the smallest cross section of a hyperboloid of revolution. -- Gorge hook, two fishhooks, separated by a piece of lead. Knight.

Pertaining to a gyrus, or convolution.

as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution. The gyrations of an ascending balloon. De Quincey. If a burning coal be nimbly moved round in a circle, with gyrations continually repeated, the whole circle will appear like fire. Sir I. Newton.

A circular motion, or a circle described by a moving body; a turn or revolution; a circuit. Quick and more quick he spins in giddy gyres. Dryden. Still expanding and ascending gyres. Mrs. Browning.

A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain.

rmed by the thread of the ordinary screw. It is distinguished from the spiral, all the convolutions of which are in the plane.

m the erroneous idea that it was brought into America by the Hessian troops, during the Revolution.

In evolution, a deviation from the typical sequence in the formation of organs or parts.

The Hungarian army in the revolutionary war of 1848-49.

ascendant, first house, or house of life, downward, or in the direction of the earth's revolution, the stars and planets passing through them in the reverse order every twenty- four hours.

Pertaining to, employed in, or produced by, the evolution of electricity by means of a battery in which water or steam is used. Hydro-electric machine (Physics), an apparatus invented by Sir William Armstrong of England for generating electricity by the escape of high-pressure steam from a series of jets connected with…

lanes in hyperbolas; also, the solid, bounded in part by such a surface. Hyperboloid of revolution, an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, but only one when the axis of revolution is the conjugate…

two others, to transfer motion from one to the other without changing the direction of revolution. -- In idle, in vain. [Obs.] "God saith, thou shalt not take the name of thy Lord God in idle." Chaucer.

Act of involving, or state of being involved; involution.

intended certificate, issued by the government of the United States at the close of the Revolution, for the principal or interest of the public debt. D. Ramsay. A. Hamilton.

Below the margin; submarginal; as, an inframarginal convolution of the brain.

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.

In the theory of evolution: The process by which the manifold is compacted into the relatively simple and permanent. It is supposed to alternate with differentiation as an agent in development.

The state or quality of being intricate or entangled; perplexity; involution; complication; complexity; that which is intricate or involved; as, the intricacy of a knot; the intricacy of accounts; the intricacy of a cause in controversy; the intricacy of a plot. Freed from intricacies, taught to live The easiest way. M…