circular Definition

having the form of a circle : round

moving in or describing a circle or spiral

of or relating to a circle or its mathematical properties

a paper (such as a leaflet) intended for wide distribution

the property (as of an optically active medium) of unequal absorption of right and left plane-polarized light so that the emergent light is elliptically polarized

a spectroscopic technique that makes use of circular dichroism

wastebasket

trigonometric function

a power saw with a circular cutting blade; also : the blade itself

cone

a cylinder with the bases circular and with the axis joining the two centers of the bases perpendicular to the planes of the two bases

a solid generated by rotating a right triangle about one of its legs —called also right circular cone

a solid bounded by a circular or other closed plane base and the surface formed by line segments joining every point of the boundary of the base to a common vertex

a surface traced by a moving straight line passing through a fixed vertex

a function (such as the sine, cosine, tangent, cotangent, secant, or cosecant) of an arc or angle most simply expressed in terms of the ratios of pairs of sides of a right-angled triangle —called also circular function

the inverse (such as the arcsine, arccosine, or arctangent) of a trigonometric function