- 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.
- 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.
verb (used with object), coned, con·ing.
THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST
Origin of cone
Example sentences from the Web for cone
He may not have been working the cones, but it looked as though his underlings were.Christie Aides Can Keep Bridgegate Emails Under Wraps|Olivia Nuzzi|April 10, 2014|DAILY BEAST
Though King and Malcolm X met only once, Cones demonstrates how they understood and utilized their synergy.
Transplanting RPE cells grown from stem cells might rejuvenate the eye's rods and cones, restoring lost vision.
It is a peculiarity of the firs that they hold their cones erect.
At the end of some of the branches come the cones, with compactly arranged and simple sporophylls all of one kind.Ancient Plants|Marie C. Stopes
Other cones would reveal themselves beneath those now existing.Etna|G. F. Rodwell
This tree bears a great crop of cones yearly, and its seeds are remarkable for their vitality.
The cones are usually borne on the tips of small branchlets, although occasionally one is borne in the manner shown in Fig. 241.Cornell Nature-Study Leaflets|Various
British Dictionary definitions for cone
- 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 vertexSee also conic section
- 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, etcTechnical name: strobilus