† octahedrousadj.

Forms: 1700s octoedrous, 1800s octahedrous.

Origin: Either (i) a borrowing from Greek, combined with an English element. Or (ii) formed within English, by derivation. Etymons: Greek ὀκτάεδρος , -ous suffix; octahedron n., -ous suffix.

Etymology: Either < Hellenistic Greek ὀκτάεδρος (see octahedron n.) + -ous suffix, or independently < octahedron n. + -ous suffix. Compare earlier octahedrical adj., octahedral adj.On the form in octo- see discussion at octa- comb. form.

Obsolete. rare.

= octahedral adj.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > having number of faces > octahedral

octahedrical1654

octahedral1684

octahedrous1702

octahedric1847

1702 Philos. Trans. (Royal Soc.) 23 1072 Copper Ore..shot into an Octoedrous form.

1869 R. F. Burton Explor. Highlands Brazil II. 140 Spinelle..is..semi-transparent, octahedrous.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online December 2020).

单词	octahedrous
释义	† octahedrousadj. Forms: 1700s octoedrous, 1800s octahedrous. Origin: Either (i) a borrowing from Greek, combined with an English element. Or (ii) formed within English, by derivation. Etymons: Greek ὀκτάεδρος , -ous suffix; octahedron n., -ous suffix. Etymology: Either < Hellenistic Greek ὀκτάεδρος (see octahedron n.) + -ous suffix, or independently < octahedron n. + -ous suffix. Compare earlier octahedrical adj., octahedral adj.On the form in octo- see discussion at octa- comb. form. Obsolete. rare. = octahedral adj. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > having number of faces > octahedral octahedrical1654 octahedral1684 octahedrous1702 octahedric1847 1702 Philos. Trans. (Royal Soc.) 23 1072 Copper Ore..shot into an Octoedrous form. 1869 R. F. Burton Explor. Highlands Brazil II. 140 Spinelle..is..semi-transparent, octahedrous. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online December 2020). < adj.1702
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