cold-blooded animals

Preserved but no longer current.

Meaning · English

As a rule, all invertebrate animals, and all fishes and reptiles, are cold-blooded, the temperature of their blood being about equal to the medium in which they live.

Era: ca. 1898 (Victorian)

Sources & notes

Reproduced from Brewer’s Dictionary of Phrase and Fable (1898 edition, public domain; archive.org, retrieved 2026-07-31; OCR text, minor errors possible). Reflects the scholarship and attitudes of its era.

Common questions

What does “cold-blooded animals” mean?

As a rule, all invertebrate animals, and all fishes and reptiles, are cold-blooded, the temperature of their blood being about equal to the medium in which they live.

Is “cold-blooded animals” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.