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To smooth; to plane; as, to howel a cask.

A curve formed by a section of a cone, when the cutting plane makes a greater angle with the base than the side of the cone makes. It is a plane curve such that the difference of the distances from any point of it to two fixed points, called foci, is equal to a given distance. See Focus. If the cutting plane be produce…

A surface of the second order, which is cut by certain planes 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, bu…

keth an ill seat, but ill ways, ill markets, and ill neighbors. Bacon. There 's some ill planet reigns. Shak.

The angle made by two lines or planes; as, the inclination of the plane of the earth's equator to the plane of the ecliptic is about 23º 28'; the inclination of two rays of light.

An inclined plane; an ascent o

Making an angle with some line or plane; -- said of a line or plane.

An apparatus to determine the inclination of the earth's magnetic force to the plane of the horizon; -- called also inclination compass, and dip circle.

A certain conic section supposed to be drawn in the tangent plane to any surface, and used to determine the accidents of curvature of the surface at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curv…

An irregularity, or a deviation, in the motion of a planet or satellite from its uniform mean motion; the amount of such deviation.

Nearer the sun than the earth is; as, the inferior or interior planets; an inferior conjunction of Mercury or Venus.

That part of a line, or of a plane, or of space, which is infinitely distant. In modern geometry, parallel lines or planes are sometimes treated as lines or planes meeting at infinity. Circle at infinity, an imaginary circle at infinity, through which, in geometry of three dimensions, every sphere is imagined to pass.…

In an ingenuous manner; openly; fairly; candidly; artlessly. Being required to explane himself, he ingeniously confessed. Ludlow.

Capable of being inhabited; habitable. Systems of inhabitable planets. Locke.

Capable of being inscribed, -- used specif. (Math.) of solids or plane figures capable of being inscribed in other solids or figures.

g to, affecting, or addressing, the senses. That intermediate door Betwixt the different planes of sensuous form And form insensuous. Mrs. Browning.

A plane for shaving or dressing the concave or inside faces of barrel staves.

es or outside, a name give to newspaper sheets printed on one side with general and miscellaneous matter, and furnished wholesale to offices of small newspapers, where the blank pages are filled up with recent and local news.

taneous acceleration, velocity, etc. Instantaneous center of rotation (Kinematics), in a plane or in a plane figure which has motions both of translation and of rotation in the plane, is the point which for the instant is at rest. -- Instantaneous axis of rotation (Kinematics), in a body which has motions both of tran…

Included between two plane surfaces or faces; as, an interfacial angle.