twinning : Idioms & Phrases
Polysynthetic twinning
- repeated twinning of crystal lamellæ, as that of the triclinic feldspars.
Webster 1913
Repeated twinning
- twinning of more than two crystals, or parts of crystals.
Webster 1913
Twinning axis , Twinning plane
- . See the Note under
Twin , n.