dicone
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Bicone — An bicone or dicone is the three dimensional geometric shape swept by revolving an isosceles triangle around its edge of unequal length. Alternatively, one can view a bicone as the surface created by joining two identical right circular cones… … Wikipedia
bicone — noun The three dimensional shape swept by revolving an isosceles triangle around its edge of unequal length, or by joining two identical right circular cones base to base. Syn: dicone … Wiktionary
