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Dictionary definition for: Heartbeat
1. (n) the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart"
2. (n) a very short time (as the time it takes the eye blink or the heart to beat) "if I had the chance I''d do it in a flash"
3. (n) an animating or vital unifying force; "New York is the commercial heartbeat of America"
WordNet 2.1 Copyright Princeton University. All rights reserved.
