flicker1

Pronunciation: /ˈflɪkə/

Definition of flicker

[no object]

1(of light or a source of light) shine unsteadily; vary rapidly in brightness:the interior lights flickered, and came on
(of a flame) burn fitfully, alternately flaring up and dying down:the candle flickered again (as adjective flickering)the flickering flames cast long shadows
(of an emotion) be felt or shown briefly or faintly:amusement flickered briefly in his eyes

2make small, quick movements:her eyelids flickered [with complement]:Forster’s eyes flickered open

1an unsteady movement of a flame or light causing rapid variations in brightness:the flicker of a candle flame caught our eyes
[mass noun] fluctuations in the brightness of a film or television image such as occur when the number of frames per second is too small for persistence of vision.

2a tiny movement:the flicker of an eyelid
a brief feeling or indication of emotion:a flicker of a smile passed across her face

Origin:

Old English flicorian, flycerian 'to flutter', probably of Germanic origin and related to Low German flickern and Dutch flikkeren

Definition of flicker in the US English dictionary