noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   In geometry, any of a class of solids formed from two pyramids placed symmetrically base to base.

Synonyms

All synonyms

bipyramidbipyramid

Etymology

From di- + pyramid.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.