Syncopation
WordNet
noun
(1) Music (especially dance music) that has a syncopated rhythm
(2) A musical rhythm accenting a normally weak beat
(3) (phonology) the loss of sounds in the interior of a word (as in `fo'c'sle' for `forecastle')
WiktionaryText
Noun
- The quality of a rhythm being somehow unexpected, in that it deviates from the strict succession of regularly spaced strong and weak beats in a meter