cold-blooded


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poi·ki·lo·ther·mic

, poikilothermalpoikilothermous (poy'ki-lō-ther'mic, -măl, -mŭs),
1. Varying in temperature according to the temperature of the surrounding medium; denoting the so-called cold-blooded animals, such as the reptiles and amphibians, and the plants.
2. Capable of existence and growth in media of varying temperatures. Compare: heterothermic, homeothermic.
3. Causing a disruption of normal hypothalamic thermoregulatory function, as seen with drugs such as phenothiazines.
[poikilo- + G. thermē, heat]

cold-blooded

or

coldblooded

(kōld′blŭd′ĭd)
adj.
1.
a. Lacking feeling or emotion: a cold-blooded killer.
b. Executed without feeling or emotion: a cold-blooded crime; a cold-blooded performance of the concerto.
2. Ectothermic.

cold′-blood′ed·ly, cold′blood′ed·ly adv.
cold′-blood′ed·ness, cold′-blood′ed·ness n.

cold-blooded

unable to regulate body heat. Fish, reptiles, and amphibians, which have internal temperatures that are close to the temperatures of the environments in which they live, are cold-blooded. Also called poikilothermic. Compare warm-blooded.

cold-blooded

see POIKILOTHERM.

cold-blooded

poikilothermic.
References in periodicals archive ?
The animals fell right between cold-blooded animals and warm-blooded ones.
Much can be learned about dinosaurs from fossils but the question of whether dinosaurs were warm-blooded or cold-blooded is still hotly debated among scientists," Professor Seymour said.
That is, the larger the cold-blooded animal is, the less muscle power is generated.
The force's Chief Constable Sir Peter Fahy said: "It would appear Cregan has deliberately done this in an act of cold-blooded murder.
So we need to be mentally focused and cold-blooded in our emotions.
The country has come so far, we cannot allow these cold-blooded murderers to drag us back into the cycle of violence and hate.
He provides many specific examples illustrating the range of conditions to which these cold-blooded beasts have adapted.
He ends the series with a conclusion of the team's findings, showing why the primitive reputation of cold-blooded creatures is far from the truth.
He died in a violent and untimely manner in a cold-blooded execution where the perpetrators had time to plan ahead and consider in some detail the subsequent police investigation.
She knows that Art is no cold-blooded killer and not a threat to others, and chooses to lie to the police in order to give him the opportunity to end the tragedy of his making on his own terms.
His narcolepsy has been manipulated to create an artificial personality named Tyler Garrett, a cold-blooded and skilled assassin.
The Parker novels feature a cold-blooded professional thief and killer named Parker who is the epitome of an existentialist nihilist surviving in a bleak and unforgivable world of other killers and cutthroats.