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microbubble

American  
[mahy-kroh-buhb-uhl] / ˈmaɪ kroʊˌbʌb əl /

noun

  1. a microscopic, gas-filled bubble, used especially in medicine to image blood flow, dissolve blood clots, etc.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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