Having no gaps, breaks, or spaces; continuous or complete without interruption.
From 'gap' (Old Norse origin, meaning 'opening') plus the suffix '-less' (meaning 'without'). This relatively modern word emerged in technical contexts to describe unbroken sequences.
In audio technology, a 'gapless' player became famous because older MP3 players would add tiny silences between tracks—'gapless' playback was a huge deal for listening to albums where songs flow together.
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