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A circle, whose center moves round in the circumference of a greater circle; or a small circle, whose center, being fixed in the deferent of a planet, is carried along with the deferent, and yet, by its own peculiar motion, carries the body of the planet fastened to it round its proper center. The schoolmen were like a…

vel wheels, or belt pulleys, in which an arm, carrying one or more of the wheels, sweeps around a center lying in an axis common to the other wheels.

ened in the periphery of a gear wheel will describe a straight line when the wheel rolls around inside a fixed internal gear of twice its diameter.

Growing on, or close to, the ground.

The "falling sickness," so called because the patient falls suddenly to the ground; a disease characterized by paroxysms (or fits) occurring at interval and attended by sudden loss of consciousness, and convulsive motions of the muscles. Dunglison.

The theory or science of the method or grounds of knowledge.

A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; -- called also eccentric equator.

ime of day indicated by the sun, and that by a perfect clock going uniformly all the year round. -- Equation clock or watch, a timepiece made to exhibit the differences between mean solar and apparent solar time. Knight. -- Normal equation. See under Normal. -- Personal equation (Astron.), the difference between an…

A steep descent or declivity; steep face or edge of a ridge; ground about a fortified place, cut away nearly vertically to prevent hostile approach. See Scarp.

A thin metal plate or shield to protect wood, or for ornament, as the shield around a keyhole.

The full profits or products which ground or land yields, as the hay of the meadows, the feed of the pasture, the grain of arable fields, the rents, services, and the like. Cowell.

nciful speculations on spiritual essences, until . . . he had and ideal world of his own around him. W. Irving.

place in which one is permanently fixed for residence or business; residence, including grounds, furniture, equipage, etc.; with which one is fitted out; also, any office or place of business, with its fixtures; that which serves for the carrying on of a business; as, to keep up a large establishment; a manufacturing…

. -- Etching needle, a sharp-pointed steel instrument with which lines are drawn in the ground or varnish in etching. -- Etching stitch (Needlework), a stitch used outline embroidery.

not rough; free from irregularities; hence uniform in rate of motion of action; as, even ground; an even speed; an even course of conduct.

nt or manifest; that which furnishes, or tends to furnish, proof; any mode of proof; the ground of belief or judgement; as, the evidence of our senses; evidence of the truth or falsehood of a statement. Faith is . . . the evidence of things not seen. Heb. xi. 1. O glorious trial of exceeding love Illustrious evidence,…

A portion of a country which is separated from the main part and surrounded by politically alien territory. [Recent.]

f exclusiveness or exclusivism. The field of Greek mythology . . . the favorite sporting ground of the exclusivists of the solar theory. Gladstone.

The projection of any part of a building in a rounded form.

To dig out of the ground; to take out of a place of burial; to disinter. Mantell.