† pyramoidn.

Origin: Either (i) a borrowing from Latin. Or (ii) a borrowing from Greek. Etymons: Latin pyramoides; Greek πυραμοειδής.

Etymology: < post-classical Latin pyramoides (4th or 5th cent.) or its etymon Hellenistic Greek πυραμοειδής pyramid-shaped < ancient Greek πυραμίς pyramid n. + -οειδής -oid suffix. Compare earlier pyramidoid n.

Geometry. Obsolete. rare.

= pyramidoid n. 1.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [noun] > three-dimensional > cone > pyramid

pyramid1570

tetrahedron1570

pyramidate1611

parabolic pyramidoid1704

pyramidoid1704

pyramoid1819

1819 P. Nicholson Archit. Dict. II. 337/1 Theorem IV.—To find the solidity of a wedge, or pyramoid.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online June 2020).

单词	pyramoid
释义	† pyramoidn. Origin: Either (i) a borrowing from Latin. Or (ii) a borrowing from Greek. Etymons: Latin pyramoides; Greek πυραμοειδής. Etymology: < post-classical Latin pyramoides (4th or 5th cent.) or its etymon Hellenistic Greek πυραμοειδής pyramid-shaped < ancient Greek πυραμίς pyramid n. + -οειδής -oid suffix. Compare earlier pyramidoid n. Geometry. Obsolete. rare. = pyramidoid n. 1. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > three-dimensional > cone > pyramid pyramid1570 tetrahedron1570 pyramidate1611 parabolic pyramidoid1704 pyramidoid1704 pyramoid1819 1819 P. Nicholson Archit. Dict. II. 337/1 Theorem IV.—To find the solidity of a wedge, or pyramoid. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online June 2020). < n.1819
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