Having a shape that resembles or is derived from a cone; cone-like in form or structure.
From Latin 'conicus' (relating to a cone) combined with the suffix '-oid' (resembling or having the nature of). The suffix '-oid' comes from Greek, indicating similarity or approximation to the root word.
Mathematicians use 'conicoid' to describe 3D surfaces that generalize the famous conic sections (circles, ellipses, parabolas, hyperbolas), which is why a cone's shadow cast at different angles creates these shapes.
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