(a) a light so arranged as to give forth sudden flashes, used for signals and in lighthouses; (b) Photography (see quot. 1890); (c) chiefly U.S. =…

(a) (Photography), a lamp used to give a flash-light; (b) a portable electric lamp which produces a light by the pressure of a button, etc.

= flash-lamp n. (b) at compounds 1b.

In full blinker light. An intermittent flashlight. U.S.