from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having a single, distinct, diagonal cleavage; said of crystals.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having a single, distinct, diagonal cleavage; -- said of crystals.
from The Century Dictionary and Cyclopedia
- In mineralogy, having crystals with one distinct diagonal cleavage.
Ancient Greek cut through. Compare diatom. (Wiktionary)