† octahedricaladj.

Forms: 1600s octaedrical, 1600s octahedricall, 1600s octohedrical, 1700s octoedrical.

Origin: Either (i) a borrowing from Latin, combined with an English element. Or (ii) formed within English, by derivation. Etymons: Latin octahedricus , -al suffix¹; octahedron n., -ical suffix.

Etymology: Either < post-classical Latin octahedricus (1641 in the passage translated in quot. 1657; < octaedrum , octahedrum (see octahedron n.) + classical Latin -icus -ic suffix) + -al suffix¹, or independently < octahedron n. + -ical suffix.On the forms in octo- see discussion at octa- comb. form.

Obsolete.

= octahedral adj.

ΘΚΠ

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

octahedrical1654

octahedral1684

octahedrous1702

octahedric1847

1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana i. iv. 31 Octohedrical, Sexangular, Sphærical, and of other Figures, which might receive the minute particles of other Salts.

1657 W. Rand tr. P. Gassendi Mirrour of Nobility i. 44 The forming of Alum into an octahedricall figure [L. octahedricam figuram].

a1691 R. Boyle Gen. Hist. Air (1692) 249 The alum appeared to be..coagulated in many Octaedrical grains.

1724 N. Bailey Universal Etymol. Eng. Dict. (ed. 2) Octoedrical, having eight Sides.

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

单词	octahedrical
释义	† octahedricaladj. Forms: 1600s octaedrical, 1600s octahedricall, 1600s octohedrical, 1700s octoedrical. Origin: Either (i) a borrowing from Latin, combined with an English element. Or (ii) formed within English, by derivation. Etymons: Latin octahedricus , -al suffix¹; octahedron n., -ical suffix. Etymology: Either < post-classical Latin octahedricus (1641 in the passage translated in quot. 1657; < octaedrum , octahedrum (see octahedron n.) + classical Latin -icus -ic suffix) + -al suffix¹, or independently < octahedron n. + -ical suffix.On the forms in octo- see discussion at octa- comb. form. Obsolete. = octahedral adj. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > having number of faces > octahedral octahedrical1654 octahedral1684 octahedrous1702 octahedric1847 1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana i. iv. 31 Octohedrical, Sexangular, Sphærical, and of other Figures, which might receive the minute particles of other Salts. 1657 W. Rand tr. P. Gassendi Mirrour of Nobility i. 44 The forming of Alum into an octahedricall figure [L. octahedricam figuram]. a1691 R. Boyle Gen. Hist. Air (1692) 249 The alum appeared to be..coagulated in many Octaedrical grains. 1724 N. Bailey Universal Etymol. Eng. Dict. (ed. 2) Octoedrical, having eight Sides. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online December 2020). < adj.1654
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