cold-blooded

adjective cold-blood·ed \ ˈkōl(d)-ˈblə-dəd \

Definition of cold-blooded

1 a : done or acting without consideration, compunction, or clemency
  • cold-blooded murder
b : matter-of-fact, emotionless
  • a cold-blooded assessment
2 : having cold blood; specifically : having a body temperature not internally regulated but approximating that of the environment
3 or coldblood play \ˈkōl(d)-ˈbləd\ : of mixed or inferior breeding
4 : noticeably sensitive to cold

cold-bloodedly

adverb

cold-bloodedness

noun

First Known Use of cold-blooded

1606


COLD-BLOODED Defined for English Language Learners

cold-blooded

adjective

Definition of cold-blooded for English Language Learners

  • : showing no sympathy or mercy : done in a planned way without emotion

  • : based on facts : not affected by emotions

  • biology : having cold blood : having a body temperature that is similar to the temperature of the environment


COLD-BLOODED Defined for Kids

cold-blooded

adjective cold-blood·ed \ ˈkōld-ˈblə-dəd \

Definition of cold-blooded for Students

1 : having a body temperature that varies with the temperature of the environment
  • Frogs are cold-blooded animals.
2 : lacking or showing a lack of normal human feelings
  • a cold-blooded criminal

Medical Dictionary

cold-blooded

adjective cold-blood·ed \ ˈkōl(d)-ˈbləd-əd \

medical Definition of cold-blooded

: having a body temperature not internally regulated but approximating that of the environment : poikilothermic
  • cold-blooded amphibians and reptiles

cold-bloodedness

noun


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