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cold-blooded
01
describing an animal that its body temperature changes depending on the temperature of its surroundings
Examples
Snakes are cold-blooded animals that bask in the sun to raise their body temperature for optimal activity.
Turtles, as cold-blooded creatures, rely on warm environments to regulate their body temperature.
02
showing no emotion or sympathy
Examples
The detective described the crime as a cold-blooded act of violence.
The villain 's cold-blooded demeanor made him a feared character in the story.
