Written Sound
Onomatopoeia Dictionary
Words that sound like the thing they mean: Imitative words. From the Greek "onoma" (name) and "poiein" (to make)
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lub-dub-lub-dub-lub-dub ...

Sound of a beating heart. This seems the most common spelling, used in medical texts. Also: dup-dup; ba bum; plop-plop; thud-thud; pop-pop; Sometimes the heart is said to throb and throb is also thought to have imitative origin. (Yahoo Answers, 1, 2)

human disease pounding pump heartbeat

zchunk

sound of a defibrillator (ref)

medical human electronic hit electric shock therapy heart attack


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