hemi·​he·​dral ˌhe-mi-ˈhē-drəl How to pronounce hemihedral (audio)
of a crystal
: having half the faces required by complete symmetry compare holohedral, tetartohedral

Word History


hemi- + -hedron

First Known Use

1837, in the meaning defined above

Time Traveler
The first known use of hemihedral was in 1837

Dictionary Entries Near hemihedral

Cite this Entry

“Hemihedral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemihedral. Accessed 29 Sep. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!