Three-dimensional geometric shapes that taper from a circular base to a point; also refers to cone-shaped objects like ice cream cones or traffic cones.
From Latin conus, from Greek kōnos meaning 'pine cone' or 'peak'. The geometric sense developed from observing the natural shape of pine cones.
Pine cones gave their name to the geometric shape, but they're actually not true cones at all - they're compound structures! The retinal cones in our eyes also got their name from this shape analogy.
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