a composite image comprising two or more superimposed or adjacent images originally distinct (e.g. resulting from the repeated reflection of…

Television. A displaced duplicate image on a television screen produced by an additional copy of an analogue signal, resulting from reflection or…

Cinematography and Television. A succession of sudden, abrupt changes in a picture, such as occurs when the number of frames per second is too…

(a) a small area struck by a beam of ions; (b) a dark spot in the middle of the screen of a cathode ray tube where the phosphor is damaged as a…

An effect consisting of a series of halos of diminishing brightness surrounding the edges of a bright image on the screen of a cathode ray tube…

Television. (See quots.)

A spurious variation in brightness over parts of a televised image. Frequently attributive.

Wrong or imperfect registration; esp. misalignment of colours in relation to one another, in printed matter (cf. misregister, n.) or in the…

Applied to various things or substances having the colour or appearance of snow. Spots that appear as a flickering mass filling a television or…

figurative. An appearance of dense snow on a television or radar screen. Cf. snow, n.1 5f.

Electronics. The phenomenon of transient damped oscillation occurring in a circuit at its resonant frequency as a result of a sudden change in…

Television. A picture condition in which the trailing edges of areas of a particular colour are extended by streaks of the complementary colour.

Television. An irregular movement and loss of continuity sometimes seen in lines and stripes in a television picture.

The action of flicker, v. in various senses.