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Pronunciation varies by accent · interjection
(onomatopoeia, medicine) Used to represent the normal rhythm of the heart on auscultation, comprising the first and second heart sounds..
Ralph tried to listen above the steady lub-dub, lub-dub of Ryan's heart, but soon he grew bored. Ryan's shirt was new and the flannel still fuzzy. Ralph nipped a hole in the front of the pocket for a better view and then, lulled by the muffled lub-dub, lub-dub and the steady rise and fall of Ryan's chest, fell asleep as if he were being rocked in a cradle.
I pulled my eyes away to glance downstream at a cinder cone perched at the brink of the left Esplanade above the mouth of Prospect Canyon and the still-hidden Lava Falls. My heart lub-dubbed a few beats quicker.
Use lub-dub when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lub-dub means (onomatopoeia, medicine) Used to represent the normal rhythm of the heart on auscultation, comprising the first and second heart sounds..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Ralph tried to listen above the steady lub-dub, lub-dub of Ryan's heart, but soon he grew bored. Ryan's shirt was new and the flannel still fuzzy. Ralph nipped a hole in the front of the pocket for a better view and then, lulled by the muffled lub-dub, lub-dub and the steady rise and fall of Ryan's chest, fell asleep as if he were being rocked in a cradle.
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