单词 | prosenneahedral |
释义 | † prosenneahedraladj. Crystallography. Obsolete. rare. Of a crystal: having nine faces on each of two adjacent parts. ΚΠ 1816 R. Jameson Treat. External Characters Minerals (ed. 2) 203 Prosenneahedral,..having nine faces on two adjacent parts, as in the prosenneahedral tourmaline..; in which the prism has nine sides, and one of the extremities nine planes, and the other only three. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online June 2020). < adj.1816 |
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