bi·​pyr·​a·​mid (ˌ)bī-ˈpir-ə-mid How to pronounce bipyramid (audio)
: a crystal consisting of two identical pyramids base to base
bipyramidal adjective

Word History

First Known Use

1824, in the meaning defined above

Time Traveler
The first known use of bipyramid was in 1824

Dictionary Entries Near bipyramid

Cite this Entry

“Bipyramid.” Dictionary, Merriam-Webster, Accessed 5 Jun. 2023.

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