Pronunciation: (kōld'blud'id), [key]
1. designating or pertaining to animals, as fishes and reptiles, whose blood temperature ranges from the freezing point upward, in accordance with the temperature of the surrounding medium; poikilothermal.
2. without emotion or feeling; dispassionate; cruel: a cold-blooded murder.
3. sensitive to cold.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.