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Definitions for Cone

[1] Geometry . a solid whose surface is generated by a line passing through a fixed point and a fixed plane curve not containing the point, consisting of two equal sections joined at a vertex. a plane surface resembling the cross section of a solid cone.
[2] anything shaped like a cone: sawdust piled up in a great cone; the cone of a volcano.
[3] ice-cream cone.
[4] Botany . the more or less conical multiple fruit of the pine, fir, etc., consisting of overlapping or valvate scales bearing naked ovules or seeds; a strobile. a similar fruit, as in cycads or club mosses.
[5] Anatomy . one of the cone-shaped cells in the retina of the eye, sensitive to color and intensity of light. Compare rod(def 17) .
[6] one of a series of cone-shaped markers placed along a road, as around an area of highway construction, especially to exclude or divert motor vehicles.
[7] (in a taper thread screw or bevel gear) an imaginary cone or frustum of a cone concentric to the axis and defining the pitch surface or one of the extremities of the threads or teeth.
[8] Ceramics . pyrometric cone.
[9] to shape like a cone or a segment of a cone.
[10] a geometric solid consisting of a plane base bounded by a closed curve, often a circle or an ellipse, every point of which is joined to a fixed point, the vertex, lying outside the plane of the base. A right circular cone has a vertex perpendicularly above or below the centre of a circular base. Volume of a cone: 1 /3 π r ² h, where r is the radius of the base and h is the height of the cone a geometric surface formed by a line rotating about the vertex and connecting the peripheries of two closed plane bases, usually circular or elliptical, above and below the vertex See also conic section
[11] anything that tapers from a circular section to a point, such as a wafer shell used to contain ice cream
[12] the reproductive body of conifers and related plants, made up of overlapping scales, esp the mature female cone , whose scales each bear a seed a similar structure in horsetails, club mosses, etc Technical name: strobilus
[13] a small cone-shaped bollard used as a temporary traffic marker on roads
[14] Also called: retinal cone any one of the cone-shaped cells in the retina of the eye, sensitive to colour and bright light
[15] (tr) to shape like a cone or part of a cone

Words related to Cone

pyramid, conoid, raceme, strobile

Words nearby Cone

condyloma acuminatum, condyloma latum, condylotomy, condylus, condé, cone, cone cell, cone granule, cone of light, cone of silence, cone off

Origin of Cone

1480–90; < Latin cōnus < Greek kônos pine-cone, cone-shaped figure; akin to hone1

Word origin for Cone

C16: from Latin cōnus, from Greek kōnus pine cone, geometrical cone

Synonyms for Cone

conoid, pyramid, raceme, strobile, strobiloid