— icosahedral , adj.
/uy koh'seuh hee"dreuhn, uy kos'euh-/ , n. , pl. icosahedrons, icosahedra /-dreuh/ .
a solid figure having 20 faces.
[ 1560-70; eikosáedron, equiv. to eikosa- (var. of eikosi-, comb. form of eíkosi twenty) + -edron -HEDRON ]
— icosahedral , adj.
/uy koh'seuh hee"dreuhn, uy kos'euh-/ , n. , pl. icosahedrons, icosahedra /-dreuh/ .
a solid figure having 20 faces.
[ 1560-70; eikosáedron, equiv. to eikosa- (var. of eikosi-, comb. form of eíkosi twenty) + -edron -HEDRON ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012