moiré effect

American  

noun

Optics.

1. the appearance, when two regularly spaced sets of lines are superimposed, of a new set of lines moiré pattern passing through the points where the original lines cross at small angles.

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Etymology

Origin of moiré effect

First recorded in 1950–55

Example Sentences

The exposed black and white paint layers create a flickering moiré effect in some works, a grayish glowing aura in others, she explained.

From New York Times • Dec. 28, 2022

Mr. Levinson discovered that the greater the distance between the plastic sheets, the more active the moiré effect.

From New York Times • Apr. 3, 2014