warm-blooded

adjective

warm-blood·​ed ˈwȯrm-ˈblə-dəd How to pronounce warm-blooded (audio)
Synonyms of warm-bloodednext
1
: having warm blood
specifically : having a relatively high and constant internally regulated body temperature relatively independent of the surroundings
2
: fervent or ardent in spirit
warm-bloodedness noun

Examples of warm-blooded in a Sentence

a warm-blooded defense of everyone's right to free speech
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The state created protocols to protect Florida's cattle herds from the parasitic fly one day after it was found in Texas and enacted a temporary moratorium on the importation of warm-blooded animals from affected areas through Friday. Cbs Miami Team, CBS News, 12 June 2026 Screwworms infestations begin when a female fly lays eggs on open wounds or other parts of the body in live-warm-blooded animals, according to the Centers for Disease Control and Prevention. Julia Jacobo, ABC News, 11 June 2026 The Canadian Food Inspection Agency has barred livestock that originated in or passed through Texas within 21 days from crossing the border, CNBC reported, and Florida separately enacted emergency rules restricting warm-blooded animal imports from infested zones, according to CBS News. Mary Whitfill Roeloffs, Forbes.com, 11 June 2026 The state created protocols to protect Florida’s cattle herds from the parasitic fly one day after it was found in Texas and enacted a temporary moratorium on the importation of warm-blooded animals from affected areas through Friday. Ana Goñi-Lessan, Sun Sentinel, 11 June 2026 See All Example Sentences for warm-blooded

Word History

First Known Use

1793, in the meaning defined at sense 1

Time Traveler
The first known use of warm-blooded was in 1793

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Cite this Entry

“Warm-blooded.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warm-blooded. Accessed 18 Jun. 2026.

Kids Definition

warm-blooded

adjective
warm-blood·​ed
ˈwȯrm-ˈbləd-əd
1
: able to keep up a relatively high and constant body temperature that is mostly independent of that of the surrounding environment
birds and mammals are warm-blooded
2
: warm in feeling
warm-bloodedness noun

Medical Definition

warm-blooded

adjective
warm-blood·​ed ˈwȯrm-ˈbləd-əd How to pronounce warm-blooded (audio)
: having warm blood
specifically : having a relatively high and constant body temperature relatively independent of the surroundings
warm-bloodedness noun

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