Definition:Tetrahedron/Linguistic Note

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Linguistic Note on Tetrahedron

The word tetrahedron derives from the Classical Greek τετράεδρόν:

tetrás (τετράς), meaning four
hedron (a form of ἕδρα), meaning base or seat.


The technically correct plural of tetrahedron is tetrahedra, but the word tetrahedrons can often be found.


Sources