ther·mo·sta·ble
ˌthər-mō-ˈstā-bəl 
: stable when heated
specifically
: retaining characteristic properties on being moderately heated
a thermostable bacterial enzyme
: the quality of being thermostable
Examples of thermostable in a Sentence
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Rebecca Kreston,
Discover Magazine,
11 Jan. 2013
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Adjective
Avian virulence and thermostable replication of the North American strain of West Nile virus.
—
Rebecca Kreston,
Discover Magazine,
11 Jan. 2013
Cite this Entry
“Thermostable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermostable. Accessed 25 Jun. 2026.
Copy CitationMedical Definition
thermostable
adjective
ther·mo·sta·ble
ˌthər-mō-ˈstā-bəl
: stable when heated
specifically
: retaining characteristic properties on being moderately heated
a thermostable bacterial protease
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