| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Adjective | 1. Having half of the similar parts of a crystals, instead of all; consisting of half the planes which full symmetry would require, as when a cube has planes only on half of its eight solid angles, or one plane out of a pair on each of its edges; or as in the case of a tetrahedron, which is hemihedral to an octahedron, it being contained under four of the planes of an octahedron.[Websters] 2. Infrequently used base adjective of the adverb hemihedrally.[Eve - graph theoretic] | |
| Adverb Form (hemihedrally) |
1. Rarely used adverbial inflection of the adjective hemihedral.[Eve - graph theoretic] | |
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Source: Webster's Revised Unabridged Dictionary (1913), compiled from various sources, under license. |
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Date "Hemihedral" was first used in popular English literature: sometime before 1914. (references) |
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Etymology:Hemihedral \Hem`i*he"dral\, adjective. [Hemi- Greek expression seat, base, from to sit.]. (references) |
| Domain | Definition | ||
| Mining | In crystallography, having lower symmetry, resulting in forms with half the number of faces as the holohedral point group. Cf: holohedral; merohedral. (references) | ||
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Source: compiled by the editor from various references; see credits. | Top | ||
| Part of Speech | Definition | |
| Adjective | 1. Having half of the similar parts of a crystals, instead of all; consisting of half the planes which full symmetry would require, as when a cube has planes only on half of its eight solid angles, or one plane out of a pair on each of its edges; or as in the case of a tetrahedron, which is hemihedral to an octahedron, it being contained under four of the planes of an octahedron.[Websters]
2. Infrequently used base adjective of the adverb hemihedrally.[Eve - graph theoretic] | |
| Adverb Form (hemihedrally) | 1. Rarely used adverbial inflection of the adjective hemihedral.[Eve - graph theoretic] | |
Source: Webster's Revised Unabridged Dictionary (1913), compiled from various sources, under license. | Top | |
Date "HEMIHEDRAL" was first used in popular English literature: sometime before 1914. (references) |
| Etymology:Hemihedral \Hem`i*he"dral\, adjective. [Hemi- Greek expression seat, base, from to sit.]. (references) |
| Domain | Definition | ||
| Mining | In crystallography, having lower symmetry, resulting in forms with half the number of faces as the holohedral point group. Cf: holohedral; merohedral. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||