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 ?
These animals, called mesotherms, eat more than cold-blooded fish and reptiles do, but they don't stick tightly to a set body temperature like warm-blooded birds and mammals.
They say that large, cold-blooded dinosaurs could have done the same and enjoyed a warm body temperature without the need to generate the heat in their own cells through burning food energy like warm-blooded animals," he said.
The sequel, Sleeper Agenda, finds Tom working with Pandora, the agency that helped rescue him from his cold-blooded creator, Brandon Kavanagh.
For brutally murdering his baby Hassan with cold-blooded intent, Shahajan Kabir has been told by this country's court system that he must serve at least 13 years.
Openly discarding morality, freedom and the concept of rights, the study was a cold-blooded analysis of how government can perpetuate its own power and keep the citizenry under control.
In other words, use less cold-blooded analysis, and pay more attention to emotions and perceptions that can sway the results.
The fiercely fabulous Gillian Murphy danced the cold-blooded Myrta, Queen of the Wilis.
Fragile and dramatic, it is a glaring reminder of natural catastrophes and terrible accidents, not to mention cold-blooded acts like those of September II.
Shake them up with the cold-blooded murder of the firm's owner and you have this colorful genre narrative.
He wanted to kill a human being so he could satisfy his curiosity as to "what a man who has committed a cold-blooded murder thinks about.
The long, sometimes heated debate about whether dinosaurs were warm- or cold-blooded may be about over, a new study suggests.
Those that can survive when their body temperatures vary widely are called cold-blooded.