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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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更新时间:2024/9/21 15:37:38