|1.||having or showing a lack of feeling or pity: a cold-blooded killing|
|2.||informal particularly sensitive to cold|
|3.||poikilothermic (of all animals except birds and mammals) having a body temperature that varies with that of the surroundings|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a chattering or flighty, light-headed person.|
|cold-blooded (kōld'blŭd'ĭd) Pronunciation Key
Having a body temperature that changes according to the temperature of the surroundings. Fish, amphibians, and reptiles are cold-blooded.