microcalorimeter

noun

: an instrument for measuring very small quantities of heat
microcalorimetric adjective

Examples of microcalorimeter in a Sentence

Recent Examples on the Web
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The soft X-ray Spectrometer's detector array (a microcalorimeter, the gray-and-gold square at the center) measures just half a centimeter across. Liz Kruesi, Discover Magazine, 21 July 2016 Physicists from Gutenberg Universitaet Mainz (JGU) and other German scientists used an extremely tiny instrument—a magnetic microcalorimeter named maXs30—to measure movement within the nucleus of the isotope thorium-229. Caroline Delbert, Popular Mechanics, 12 Oct. 2020

Word History

First Known Use

1911, in the meaning defined above

Time Traveler
The first known use of microcalorimeter was in 1911

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Cite this Entry

“Microcalorimeter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microcalorimeter. Accessed 7 Jul. 2026.

Medical Definition

microcalorimeter

noun
: an instrument for measuring very small quantities of heat
microcalorimetry noun
plural microcalorimetries
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