Etymology: Middle English flikeren, from Old English flicorian
Date: before 12th century
1. to move irregularly or unsteadily ; flutter
2. to burn or shine fitfully or with a fluctuating light <a candle flickering in the window> 3. to appear briefly transitive verb 1. to cause to flicker 2. to produce by flickering • flickeringly adverb II. noun Date: 1822 1. a. an act of flickering b. a sudden brief movement c. a momentary quickening <a flicker of anger> d. a slight indication ; hint <a flicker of recognition> 2. a. a wavering light b. a repeated momentary defect in a cathode-ray tube image caused especially by slow scanning of the screen 3. movie — often used in plural • flickery adjective III. noun Etymology: probably imitative of its call Date: 1809 a large barred and spotted North American woodpecker (Colaptes auratus) with a brown back that commonly forages on the ground for ants — compare red-shafted flicker, yellow-shafted flicker
New Collegiate Dictionary. 2001.