Tetrahedra is valid Scrabble Word

Is tetrahedra a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is tetrahedra valid Words with Friends?
Words with Friends YES

10 letters word
14 points in Scrabble
13 points in WWF

Definitions for TETRAHEDRA in dictionary:

NOUN:

TETRAHEDRON, a polyhedron that has four faces
a solid having four plane triangular faces; a triangular pyramid.

Words related to TETRAHEDRA

tetrahedron15

Words that contain TETRAHEDRA

tetrahedral15 tetrahedrally20 icositetrahedra21

How to use TETRAHEDRA in a sentence

It should be noted that it is not possible to show five of the prisms in the five intersecting tetrahedra of prisms, and 30 atoms must, therefore, be added in counting.
The atoms are arranged in two tetrahedra with a common apex, and the relationship is maintained in the meta-body, a septet.
Molybdenum presents us with only two new forms, and these are merely four-atomed tetrahedra, occurring in pairs as object and image.

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