octaedron

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English

Noun

octaedron

  1. Alternative spelling of octahedron

Anagrams

Latin

Etymology

From Ancient Greek ὀκτώ (oktṓ, eight) + ἕδρα (hédra, seat).

Pronunciation

Noun

octaedron n (genitive octaedrī); second declension

  1. octahedron
    • 1611, Johannes Kepler, Strena seu de nive sexangula 20:
      Aiunt gemmarii naturalia in adamantibus inveniri octaedra, perfectissimae et limatissimae formae.
      Jewelers say that natural octahedra of the most perfect and most refined form are found in diamonds.

Declension

Second-declension noun (neuter, Greek-type).

singular plural
nominative octaedron octaedra
genitive octaedrī octaedrōrum
dative octaedrō octaedrīs
accusative octaedron octaedra
ablative octaedrō octaedrīs
vocative octaedron octaedra

Derived terms

Noun

octaedron

  1. accusative singular of octaedros