Diapositive

noun

Definitions

Noun
  1. 1
    An image suitable to overlay (superimpose) over another (as for example a gel for an overhead projector, a slide that complements another slide as a superimposition for it, or a digital virtual equivalent of these); its coloration is adjusted to contrast with the underlying image (for example, text may be white instead of black in areas where the background is dark).

Etymology

From dia- + positive.

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