warm-blooded

adjective

warm-blood·​ed ˈwȯrm-ˈblə-dəd 

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

Synonyms

• warm
• passionate
• passional
• fervent
• emotional

Examples of warm-blooded in a Sentence

a warm-blooded defense of everyone's right to free speech

Recent Examples on the Web

As the snail makes its way to a fish, it then can be passed on to a warm-blooded vertebrate such as a bird or human. —Ashley MacKin Solomon, San Diego Union-Tribune, 10 June 2025

The worms have a life cycle that involves living inside three hosts: first, the trumpet snail; then, a fish; and finally a warm-blooded vertebrate like birds or humans that are unlucky enough to eat the infected fish. —Ian Randall, MSNBC Newsweek, 3 June 2025

The flatworms first infect the snail, then a fish, and finally a warm-blooded vertebrate, like a bird or a human, that consumes the infected fish. —City News Service, San Diego Union-Tribune, 3 June 2025

In addition to eggs, tissue cysts present in the meat of warm-blooded animals can spread toxoplasmosis as well if they are not destroyed by cooking to proper temperature. —Bill Sullivan, The Conversation, 28 May 2025

Word History

First Known Use

1793, in the meaning defined at sense 1

Rhymes for warm-blooded

• blooded
• budded
• flooded
• studded
• thudded

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 

: having warm blood

specifically : having a relatively high and constant body temperature relatively independent of the surroundings

warm-bloodedness noun