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cold-blooded

cold-blooded

5 3.7
An animal whose body temperature changes with the air or water temperature
  • adjective
  • /koʊldˈblʌdɪd/
  • Specialized
translation icon : de sangre fría
  • These cold-blooded reptiles do not chew or dismember their prey.
  • cold-blooded reptiles
  • cold-blooded creatures
  • cold-blooded animals

Examples

  • Everyone knows a tortoise is a cold-blooded reptile... that moves about half a mile an hour.

  • Cold-blooded animals do not absorb medicine very fast at all.

  • A: "Since they are cold-blooded, they like to come out when it's warm."

    Blog text (25)
  • A: "Snakes are cold-blooded, so they like to come out when it's warm and sun themselves.

    Blog text (25)
  • Fish are cold-blooded.

    Blog text (25)
  • Everyone knows a tortoise is a cold-blooded reptile... that moves about half a mile an hour.

  • Warmth is important for an iguana since they're cold-blooded creatures and can't regulate their temperature alone.

    Blog text (21)
  • Cold-blooded animals do not absorb medicine very fast at all.

  • Miles O'Brien: Like all cold-blooded animals, lobsters are highly temperature-sensitive.

Synonyms

ectothermic
vscold-blooded
  • Specialized
1 9.1

Having a body temperature that changes with the surrounding air or water

states the same lack of internal regulation in a general definition
poikilothermic
vscold-blooded
  • Specialized
9.9

Body temperature changes with the air or water around the animal

is a more general, nontechnical phrasing of the same biological idea
poikilothermous
vscold-blooded
  • Specialized
9.9

Having a body temperature that changes with the environment, like cold-blooded animals

is used more generally and does not state group exclusions
heterothermic
vscold-blooded
  • Specialized
9.9

An animal, often a reptile or fish, whose body temperature changes with the surroundings

is the general phrase for the same trait without naming excluded groups

Antonyms

warm-blooded
  • Specialized
4 3.5

An animal that keeps a steady temperature inside its body, like humans and birds

How Warm-Blooded

warm-blooded
  • Specialized
4 3.5
ectotherm
  • Specialized
1 8.7
cold-blooded
  • Specialized
5 3.7

Surface Forms

cold-blooded positive

Morphology

cold-blooded = cold + blood (transparent) = cold + blood + ed

Formed from 'cold' + 'blood' with the adjectival suffix '-ed' to mean 'having cold blood'; the physiological sense is a direct, literal composition.

Etymology

The word cold-blooded comes from the simple parts cold and blood, meaning 'cold' and 'blood'. It was first used for animals whose body heat changes with the outside temperature, so their blood can be 'cold' and their activity depends on the warmth.