Ambidexter

Part of speech: noun (n.)

1. A person who uses both hands with equal facility.

2. Hence; A double-dealer; one equally ready to act on either side in party disputes. The rest are hypocrites, ambidexters, so many turning pictures -- a lion on one side, a lamb on the other. Burton.

3. A juror who takes money from both parties for giving his verdict. Cowell.

Part of speech: adjective (a.)

Using both hands with equal ease. Smollett.