What is the term used to describe people who write both with left or right hand?

Question

This term was used in the hollywood movie 'The Zodiac (2007)'.

Answer 1

ambidextrous

Answer 2

Ambidextrous.  And really really good!  Leonardo da Vinci could write backwards with one hand and forward with the other.  At the same time.  

Answer 3

ambidextrous  

Answer 4

the three above me have it right.

Answer 5

That term would be.. ambidextrous.  Or extremely lucky.  

Answer 6

ambidexterous  

Answer 7

Ambidextrous or cross-dominant.

Ambidexterity is the state of being equally adept in the use of both right and left appendages (such as the hands). It is one of the most famous varieties of cross-dominance.

Answer 8

ambidextrous

am-meaning with

bi-meaning two

and dex-meaning hands

so it translates to with both hands