Definition of "cold-blooded" []

• Lacking feeling or emotion: a cold-blooded killer. (adjective)
• Executed without feeling or emotion: a cold-blooded crime; a cold-blooded performance of the concerto. (adjective)
• Ectothermic. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The scientists were keen to clarify the term "cold-blooded", which - although a familiar description used for many reptiles, amphibians and fish - can be misleading."
• "“You know, what you refer to as cold-blooded murder, others term justifiable homicide.”"
• "A jury in Canada has found three members of an Afghan family guilty of drowning three teenage sisters and another woman in what the judge described as "cold-blooded, shameful murders" resulting from a "twisted concept of honour"."