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To trace out, as a line, figure, or solid, by the motion of a point or a magnitude of inferior order.

as a line, a surface, a solid, by the motion, in accordance with a mathematical law, of a point or a magnitude; as, the generation of a line or curve by the motion of a point, of a surface by a line, a sphere by a semicircle, etc.

That which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent.

An assemblage of species, having so many fundamental points of structure in common, that in the judgment of competent scientists, they may receive a common substantive name. A genus is not necessarily the lowest definable group of species, for it may often be divided into several subgenera. In proportion as its definit…

odetic observers. Geodetic line or curve, the shortest line that can be drawn between two points on the elipsoidal surface of the earth; a curve drawn on any given surface so that the osculating plane of the curve at every point shall contain the normal to the surface; the minimum line that can be drawn on any surface…

A kind of divination by means of figures or lines, formed by little dots or points, originally on the earth, and latterly on paper.

. See Dunker. -- German bit, a wood-boring tool, having a long elliptical pod and a scew point. -- German carp (Zoöl.), the crucian carp. -- German millet (Bot.), a kind of millet (Setaria Italica, var.), whose seed is sometimes used for food. -- German paste, a prepared food for caged birds. -- German process (Me…

A weapon with a scythe-shaped blade, and a separate long sharp point, mounted on a long staff and carried by foot soldiers.

The main point, as of a question; the point on which an action rests; the pith of a matter; as, the gist of a question.

l manner of vice. Grew. -- To give place, to withdraw; to yield one's claim. -- To give points. (a) In games of skill, to equalize chances by conceding a certain advantage; to allow a handicap. (b) To give useful suggestions. [Colloq.] -- To give rein. See under Rein, n. -- To give the sack . Same as To give the bag…

end of a pole, whose edge was on the outside curve; also, a light lance with a long sharp-pointed head. Wilhelm.

The locus described by any point attached to a curve that slips continuously on another fixed curve, the movable curve having no rotation at any instant.

n of the surface of a hemisphere upon a plane parallel to the base of the hemisphere, the point of sight being taken in the axis produced beyond the surface of the opposite hemisphere a distance equal to the radius of the sphere into the sine of 45º. -- Globular sailing, sailing on the arc of a great circle, or so as…

of dialing. Gnomonic projection, a projection of the circles of the sphere, in which the point of sight is taken at the center of the sphere, and the principal plane is tangent to the surface of the sphere. "The gnomonic projection derives its name from the connection between the methods of describing it and those for…

To move from the person speaking, or from the point whence the action is contemplated; to pass away; to leave; to depart; -- in opposition to stay and come. I will let you go, that ye may sacrifice to the Lord your God; . . . only ye shall not go very far away. Ex. viii. 28.

A pointed instrument used to urge on a beast; hence, any necessity that urges or stimulates. The daily goad urging him to the daily toil. Macaulay.

between which (at ab) the faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated circle or semicircle upon which the angle is read off. -- Reflecting goniometer, an instrument for measuring the angles of crystals by determining through what angular space the crystal…

of the abatements. It is made of two curved lines, meeting in an acute angle in the fesse point.

Of or pertaining to a style of architecture with pointed arches, steep roofs, windows large in proportion to the wall spaces, and, generally, great height in proportion to the other dimensions -- prevalent in Western Europe from about 1200 to 1475 a. d. See Illust. of Abacus, and Capital.

tanding; as, grades of military rank; crimes of every grade; grades of flour. They also appointed and removed, at their own pleasure, teachers of every grade. Buckle.