De Quervain's tenosynovitis is usually associated with pain when the thumb is folded across the palm and the fingers are flexed over the thumb as the hand is flexed down toward the little finger away from the involved wrist area.
Double negative. English grammar. A double negative is a grammatical construction occurring when two forms of negation are used in the same sentence. Multiple negation is the more general term referring to the occurrence of more than one negative in a clause.
Diplopia is the medical term for double vision. Polyplopia is the perception of three or more images of a single object overlapping each other. Double vision is called monocular when the double image is perceived by an eye that is tested alone. In binocular double vision, each eye sees a single image when tested alone, but a double image is present when both eyes are open.