dyad
noun/ˈdaɪæd/
/ˈdaɪæd/
- (specialist) something that consists of two parts
- the mother-child dyad
- (mathematics) an operator that is the combination of two vectors
Word Originlate 17th cent. (originally denoting the number two or a pair): from late Latin dyas, dyad-, from Greek duas, from duo ‘two’. Current senses date from the late 19th cent.
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dyad