fade-in(redirected from fadein)
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Related to fadein: fadeout
A gradual increase in signal strength, as at the start of a radio or television program or when changing to a new scene, to make sound volume and picture brightness increase gradually.
In motion pictures, the gradual emergence of a screen image from black.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.