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Cold-blooded is an informal term for one or more of a group of characteristics that determine an animal's thermophysiology. These include: Ectothermy, controlling body temperature through external processes, such as by basking in the sun; Poikilothermy, the ability of an organism to function over a wide internal temperature range
Cold-bloodedness, the state of having a variable body temperature that is usually only slightly higher than the environmental temperature. This state distinguishes fishes, amphibians, reptiles, and invertebrate animals from warm-blooded, or homoiothermic, animals (birds and mammals).
(biology) (of animals, for example fish or snakes) having a body temperature that depends on the temperature of the surrounding air or water compare warm-blooded. cold-bloodedly. adverb See cold-blooded in the Oxford Advanced Learner's Dictionary. Check pronunciation: cold-blooded.
Cold-blooded definition: 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.. See examples of COLD-BLOODED used in a sentence.
What does the adjective cold-blooded mean? There are five meanings listed in OED's entry for the adjective cold-blooded . See ‘Meaning & use’ for definitions, usage, and quotation evidence.
1. [more cold–blooded; most cold–blooded] : showing no sympathy or mercy. cold-blooded [= ruthless] murderers. : done in a planned way without emotion. a cold-blooded killing. 2. [more cold–blooded; most cold–blooded] : based on facts : not affected by emotions.
May 5, 2024 · 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; poikilothermal. 2. without emotion or feeling; dispassionate; cruel. a cold-blooded murder. 3. sensitive to cold.
