Definitions for "Cold-blooded"
Having cold blood; -- said of fish or animals whose blood is but little warmer than the water or air about them.
Not thoroughbred; -- said of animals, as horses, which are derived from the common stock of a country.
Animals that are unable to retain heat produced by metabolic activities. Also known as ectothermic. The metabolism of cold-blooded animals is greatly influenced by climate and temperature.
Deficient in sensibility or feeling; hard-hearted.
without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction"
Popularized description of ectothermy.