hemihedral

adjective
hemi·​he·​dral | \ ˌhe-mi-ˈhē-drəl How to pronounce hemihedral (audio) \

Definition of hemihedral

of a crystal
: having half the faces required by complete symmetry — compare holohedral, tetartohedral

First Known Use of hemihedral

1837, in the meaning defined above

History and Etymology for hemihedral

hemi- + -hedron

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The first known use of hemihedral was in 1837

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