bipyramid

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English[edit]

Etymology[edit]

From bi- +‎ pyramid.

Noun[edit]

bipyramid (plural bipyramids)

  1. A dipyramid.
    • 1998, Georgina Ferry, Dorothy Hodgkin: A Life:
      Yet the perfect hexagonal bipyramids still in the test-tube must have had an internal order to produce those shapes.