WordReference Random House Unabridged Dictionary of American English © 2025
sca•le•no•he•dron
(skā lē′nə hē′drən),USA pronunciation n., pl. -drons, -dra (-drə).USA pronunciation [Crystall.]
sca•le′no•he′dral, adj.
- Crystallographya hemihedral crystal form of 8 or 12 faces, each face being a scalene triangle.
- Greek skalēnó(s) unequal + -hedron
- 1850–55