octaedron
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English[edit]
Noun[edit]
octaedron
- Alternative spelling of octahedron
Anagrams[edit]
Latin[edit]
Etymology[edit]
From Ancient Greek ὀκτώ (oktṓ, “eight”) + ἕδρα (hédra, “seat”).
Pronunciation[edit]
- (Classical) IPA(key): /okˈta.e.dron/, [ɔkˈt̪äɛd̪rɔn]
- (modern Italianate Ecclesiastical) IPA(key): /okˈta.e.dron/, [okˈt̪äːed̪ron]
Noun[edit]
octaedron n (genitive octaedrī); second declension
- 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.
- Aiunt gemmarii naturalia in adamantibus inveniri octaedra, perfectissimae et limatissimae formae.
Declension[edit]
Second-declension noun (neuter, Greek-type).
Case | Singular | Plural |
---|---|---|
Nominative | octaedron | octaedra |
Genitive | octaedrī | octaedrōrum |
Dative | octaedrō | octaedrīs |
Accusative | octaedron | octaedra |
Ablative | octaedrō | octaedrīs |
Vocative | octaedron | octaedra |
Derived terms[edit]
Noun[edit]
octaedron