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In geometry, a bicone or dicone (from , and Greek: di-, both meaning "two") is the three-dimensional surface of revolution of a rhombus around one of its axes of symmetry. Equivalently, a bicone is the surface created by joining two congruent right circular cones at their bases. A bicone has circular symmetry and orthogonal bilateral symmetry.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).