Definition of plagihedral in English:

plagihedral

adjective ˌpleɪdʒɪˈhiːdr(ə)l

rare

Having or designating certain symmetrical crystal faces whose axes are each at the same oblique angle to the vertical, occurring especially in quartz, where the orientation of these faces indicates whether the crystal is laevorotatory or dextrorotatory.

Origin

Early 19th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From ancient Greek πλάγιος oblique, slanting + -hedral, after French plagièdre (R. J. Haüy 1797, in Jrnl. des Mines 28255).

Definition of plagihedral in US English:

plagihedral

adjectiveˌpleɪdʒɪˈhiːdr(ə)l

rare

Having or designating certain symmetrical crystal faces whose axes are each at the same oblique angle to the vertical, occurring especially in quartz, where the orientation of these faces indicates whether the crystal is laevorotatory or dextrorotatory.

Origin

Early 19th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From ancient Greek πλάγιος oblique, slanting + -hedral, after French plagièdre (R. J. Haüy 1797, in Jrnl. des Mines 28255).

词汇	plagihedral
释义	Definition of plagihedral in English: plagihedral adjective ˌpleɪdʒɪˈhiːdr(ə)l rare Having or designating certain symmetrical crystal faces whose axes are each at the same oblique angle to the vertical, occurring especially in quartz, where the orientation of these faces indicates whether the crystal is laevorotatory or dextrorotatory. Origin Early 19th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From ancient Greek πλάγιος oblique, slanting + -hedral, after French plagièdre (R. J. Haüy 1797, in Jrnl. des Mines 28255). Definition of plagihedral in US English: plagihedral adjectiveˌpleɪdʒɪˈhiːdr(ə)l rare Having or designating certain symmetrical crystal faces whose axes are each at the same oblique angle to the vertical, occurring especially in quartz, where the orientation of these faces indicates whether the crystal is laevorotatory or dextrorotatory. Origin Early 19th century; earliest use found in Robert Jameson (1774–1854), geologist and natural historian. From ancient Greek πλάγιος oblique, slanting + -hedral, after French plagièdre (R. J. Haüy 1797, in Jrnl. des Mines 28255).
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