Definition:Decahedron/Linguistic Note

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Linguistic Note on Decahedron

The word decahedron derives from the Classical Greek δεκαεδρόν:

deca (δεκα), meaning ten
hedron (a form of ἕδρα), meaning base or seat.

The technically correct plural of decahedron is decahedra, but the word decahedrons can often be found.