Top Definition
Viewing any High Definition video and seeing something that, if the video was in standard definition, would otherwise have gone unnoticed or unrecognized. As long as the source is outputting at 720p or above, it is considered High Definition.
See also - HD Moment
I had a high def moment when I noticed my friend in the stands while watching the basketball game.
by Jenkem Hog January 29, 2008
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