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2 ENTRIES FOUND:

cold–blooded

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

: 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

Full 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 cold·blood \-ˈbləd\ :  of mixed or inferior breeding
4
:  noticeably sensitive to cold
cold–blood·ed·ly adverb
cold–blood·ed·ness noun

First Known Use of COLD-BLOODED

1595

cold–blooded

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

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–blood·ed·ness noun

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