from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A type of contact twins where the composition surfaces are parallel to one another.
from the GNU version of the Collaborative International Dictionary of English
- adj. repeated twinning, like that of the triclinic feldspar, producing fine parallel bands in alternately reversed positions.
- n. repeated twinning of crystal lamellæ, as that of the triclinic feldspars.
Sorry, no etymologies found.