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Webster 1913 Edition
Twinning
Twin′ning
,Noun.
(Crystallog.)
The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about.
Polysynthetic twinning
, repeated twinning of crystal lamellae, as that of the triclinic feldspars.
– Repeated twinning
, twinning of more than two crystals, or parts of crystals.
– Twinning axis
, Twinning plane
See the Note under
Twin
, Noun.
Definition 2024
twinning
twinning
English
Verb
twinning
- present participle of twin
Noun
twinning (plural twinnings)
- action of the verb to twin
- giving birth to twins
- the pairing of similar objects (such as towns)
- (crystallography) the formation of twin crystals
- (transport) the conversion of a road into a dual carriageway
Derived terms
Adjective
twinning (not comparable)