noun · neutersecond declension
tetraëdrum
tetraëdrum n (genitive tetraëdrī)
Classical[tɛˈtra.ɛ.drũː]Ecclesiastical[teˈtraː.e.drum]
Meaning
- A tetrahedron; a solid figure with four faces.
Declension
| form | singular | plural |
|---|---|---|
| nominative | tetraëdrum | tetraëdra |
| genitive | tetraëdrī | tetraëdrōrum |
| dative | tetraëdrō | tetraëdrīs |
| accusative | tetraëdrum | tetraëdra |
| ablative | tetraëdrō | tetraëdrīs |
| vocative | tetraëdrum | tetraëdra |
Origins
From Ancient Greek τετράεδρον (tetráedron, “four-sided”), from τέτταρες (téttares, “four”) + ἕδρα (hédra, “seat, base, face”).
Descendants
- Englishtetrahedron
- Frenchtétraèdre