hemipyramidn.

Etymology: hemi- prefix.Previous versions of the OED give the stress as: hemiˈpyramid.

Crystallography.

A figure consisting of two pairs of parallel faces intersecting all three axes in the monosymmetric system (in which four such pairs constitute a pyramid).

ΚΠ

1889 Cent. Dict. IV. (rev. ed.) Hemipyramid.

Derivatives

hemipyˈramidal adj. of or pertaining to a hemipyramid.

ΚΠ

1854 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Hemipyramidal..Hemirhombohedral.

This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2019).

单词	hemipyramid
释义	hemipyramidn. Etymology: hemi- prefix.Previous versions of the OED give the stress as: hemiˈpyramid. Crystallography. A figure consisting of two pairs of parallel faces intersecting all three axes in the monosymmetric system (in which four such pairs constitute a pyramid). ΚΠ 1889 Cent. Dict. IV. (rev. ed.) Hemipyramid. Derivatives hemipyˈramidal adj. of or pertaining to a hemipyramid. ΚΠ 1854 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Hemipyramidal..Hemirhombohedral. This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2019). < n.1854
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