Variant of cone
- a flat-based, single-pointed solid formed by a rotating straight line that traces out a closed-curved base from a fixed vertex point that is not in the same plane as the base; esp., one () formed by tracing a circle from a vertex perpendicular to the center of the base (also formed by rotating a right triangle 360° with either leg as the axis, or by rotating an isosceles triangle 360° with the altitude as the axis)
- the surface of such a solid
- a similar unbounded surface extending outward in both directions from a point: it is formed by rotating in an elliptical or circular pattern a straight line that always passes through this point
- any object or mass shaped like a cone; specif.,
- a crisp shell of pastry for holding a scoop of ice cream
- the peak of a volcano
- any of various machine parts
- a reproductive structure of certain nonflowering plants, consisting of an elongated central axis upon which are borne overlapping scales, bracts, sporophylls, etc., usually in a spiral fashion, and in which are produced pollen, spores, or ovules; strobilus: cones are found in cycads, conifers, club mosses, horsetails, etc.
- any similar structure, as the catkin of hops
- any of the flask-shaped cells in the retina of most vertebrates, sensitive to bright light and color
- cone shell
- the diaphragm (sense ) of a speaker, usually cone-shaped
Origin: Middle English ; from Classical Latin conus ; from Classical Greek kōnos, a wedge, peak, cone ; from Indo-European base kō(n)-, to sharpen from source hone, Classical Latin cos
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