Emissary

Webster's Dictionary of the English Language

·adj Exploring; spying.

II. Emissary ·adj Applied to the veins which pass out of the cranium through apertures in its walls.

III. Emissary ·noun An agent employed to advance, in a covert manner, the interests of his employers; one sent out by any power that is at war with another, to create dissatisfaction among the people of the latter.