0
The word ambidexterity is a noun. It is the ability to write with both hands.
Ambidexterity is a rare quality also in the medical field.
The noun forms for the adjective ambidextrous are ambidextrousness and ambidexterity.
That is the correct spelling of "ambidexterity" (being ambidextrous, able to write or otherwise use either hand).
Lydia C. Thering has written:
'Ambidexterity in volleyball' -- subject(s): Left- and right-handedness, Volleyball