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warm-blooded vs. cold-blooded

[wawrm-bluhd-id] / ˈwɔrmˈblʌd ɪd /

adjective

  1. Also designating or pertaining to animals, as mammals and birds, whose blood ranges in temperatures from about 98° to 112°F (37° to 44°C) and remains relatively constant, irrespective of the temperature of the surrounding medium; homoiothermal.

  2. ardent, impetuous, or passionate.

    young and warm-blooded valor.

[kohld-bluhd-id] / ˈkoʊldˈblʌd ɪd /

adjective

  1. designating or pertaining to animals, as fishes and reptiles, whose blood temperature ranges from the freezing point upward, in accordance with the temperature of the surrounding medium; poikilothermic.

  2. without emotion or feeling; dispassionate; cruel.

    a cold-blooded murder.

  3. sensitive to cold.