con·tac·tor 
(kŏntăk′tər, kən-tăk-)
(kŏntăk′tər, kən-tăk-)n.
An electrical relay used to control the flow of power in a circuit.
- photogram
- photogrammetric
- photogrammetrist
- photogrammetry
- photograph
- photographable
- photographer
- photographic
- photographical
- photographically
- photography
- photogravure
- photoheliograph
- photojournalism
- photojournalist
- photojournalistic
- photokinesis
- photokinetic
- photolithograph
- photolithographer
- photolithographic
- photolithographically
- photolithography
- photolysis
- photolytic