-hedralcomb. form

Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly.

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek -εδρος , -al suffix¹.

Etymology: < ancient Greek -εδρος (see -hedron comb. form) + -al suffix¹.Formations are found from the second half of the 17th cent., chiefly after nouns in -hedron comb. form. Compare e.g. polyhedral adj., octahedral adj., heptahedral adj. at heptahedron n. Derivatives. Compare -hedric comb. form.

Forming adjectives designating geometrical solids having faces of the number or shape specified by the first element(s), typically corresponding to nouns in -hedron comb. form. Also: forming adjectives relating to other aspects of the faces of crystals, as subhedral adj., tautohedral adj. at tauto- comb. form , etc.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	-hedral
释义	-hedralcomb. form Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly. Origin: A borrowing from Greek, combined with an English element. Etymons: Greek -εδρος , -al suffix¹. Etymology: < ancient Greek -εδρος (see -hedron comb. form) + -al suffix¹.Formations are found from the second half of the 17th cent., chiefly after nouns in -hedron comb. form. Compare e.g. polyhedral adj., octahedral adj., heptahedral adj. at heptahedron n. Derivatives. Compare -hedric comb. form. Forming adjectives designating geometrical solids having faces of the number or shape specified by the first element(s), typically corresponding to nouns in -hedron comb. form. Also: forming adjectives relating to other aspects of the faces of crystals, as subhedral adj., tautohedral adj. at tauto- comb. form , etc. This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022). < comb. form
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