What does dextrality mean?
Dextrality is the technical term for right-handedness: the condition of favoring the right hand over the left for tasks such as writing, throwing, or eating. In psychology, neuroscience, and biology, it extends beyond the hand to describe any preferential use of the right side of the body or a rightward bias in lateral functioning, as in studies of cerebral dominance or paw preferences in animals. The word derives from the Latin dexter, meaning 'on the right' or 'skillful', which also gave English 'dexterity'. Its opposite is sinistrality, from the Latin word for 'left', and someone equally skilled with both hands is ambidextrous. Dextrality is largely confined to scholarly contexts — research papers on handedness, laterality, and motor development — where its precision is valued. In everyday English, speakers simply say 'right-handedness', but the term remains useful whenever scientific neutrality about handedness is required.
The condition or tendency of being right-handed; preferential use of the right hand.
"Her strong dextrality was evident from the way she instinctively reached with her right hand."
Chiefly used in academic and scientific contexts.
A broader rightward bias in lateral functioning of the body or brain, studied in psychology and biology.
"Studies of cerebral dextrality examine why language processing tends to be localized in the left hemisphere."
Rarely pluralized; the plural appears only when contrasting different instances or types of rightward preference, such as across individuals or species.
"The paper compared dextralities observed across several primate species."
The Latin word for 'right' — dexter — also meant 'skillful' and 'lucky', which is why English still treats the right hand as the clever one.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dextrality
Dextrality comes from the Latin adjective dexter, meaning 'on the right side', combined with the suffix -ity forming nouns of quality. The same root produced 'dexterous' and 'dexterity', since Roman culture associated the right hand with skill and good fortune. The word entered scholarly English usage around the nineteenth century as scientists began systematically studying handedness and lateral preference.
How dextrality is actually used
A technical term used mainly in psychology, neuroscience, zoology, and linguistics rather than in everyday conversation; ordinary speech favors 'right-handedness'. It carries no strong connotation and appears mostly in academic writing.
Easily confused with dextrality
Dexterity means skill and grace in using the hands (or mind), while dextrality specifically denotes right-handedness or a rightward lateral bias.
Sinistrality is the counterpart of dextrality, referring to left-handedness or a leftward bias rather than a rightward one.