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Merriam-Webster Online Dictionary
ambidextrous (adjective)
using both hands with equal ease
unusually skillful - versatile
characterized by duplicity - double-dealing
Ambidextrous (Wikipedia)
"Ambidextrous" redirects here. For the novel by Felice Picano, see Ambidextrous (novel).

Ambidexterity is the state of being equally adapted in the use of both the left and the right hand, and also in using them at the same time. Only about one percent of people are naturally ambidextrous. The degree of versatility with each hand is generally the qualitative factor in determining a person's ambidexterity.

In more modern times, it is more common to find some people considered ambidextrous who were originally left-handed and who learned to be ambidextrous, either deliberately or during childhood institutions such as schools, or in jobs where right-handed habits are often emphasized or required. Since many everyday devices (such as can openers and scissors) are asymmetrical and designed for right-handed people, many left-handers learn to use them right-handedly due to the rarity or lack of left-handed models. Thus, left-handed people are much more likely to develop motor skills in their non-dominant hand than right-handed people (who are not subjected to left-favoring devices). Right-handers may become ambidextrous due to an injury of their right hand or arm. Ambidexterity is often encouraged in activities requiring a great deal of skill in both hands, such as typing, juggling, musicianship, surgery, sports and martial arts.