CONE, n. [It coincides in radical sense with the root of can and begin.] 1. A solid body or figure having a circle for its base, and its top terminated in a point or vertex, like a sugar loaf.2. In botany, the conical fruit of several evergreen trees, as of the pine, fir, cedar, and cypress. It is composed of woody scales, usually opening , and has a seed at the base of each scale.A cone of rays, in optics, includes all the rays of light which proceed from a radiant point and fall upon the surface of a glass.A right cone, is when its axis is perpendicular to its base, and its sides equal. It is formed by the revolution of a right-angle plane triangle about one of its sides.A scalene cone, is when its axis is inclined to its base and its sides unequal. |
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