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Encyclopedia

Cold-blooded is a loose layman's term that may refer to:

Cold-blooded could also refer to:

See also


Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

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Contents

English

Pronunciation

  • (US) IPA: /ˈkoʊldˈblʌd.ɪd/

Etymology

From cold + blood + -ed.

Adjective

cold-blooded (comparative more cold-blooded, superlative most cold-blooded)

Positive
cold-blooded

Comparative
more cold-blooded

Superlative
most cold-blooded

  1. Having an unregulated body temperature; ectothermic.
  2. Lacking emotion or compunction.

Synonyms

Antonyms

Translations


Simple English

Cold-blooded animals are animals that can't control the temperature of their body. Some cold-blooded animals sit in the sun when they are cold and sit in the shade when they are hot, for example: reptiles such as lizards and turtles. Other animals do not try to change their body temperature at all, for example: insects. Animals whose bodies control their body temperature are called warm-blooded.

Cold-blooded animals do not actually have cold blood all the time. If the animal's body is warm, then its blood will be warm, too. The scientific word for cold-blooded is poikilotherm.


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