kiss of life

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Mouth-to-mouth resuscitation.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun idiomatic, UK Mouth-to-mouth resuscitation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an emergency procedure consisting of external cardiac massage and artificial respiration; the first treatment for a person who has collapsed and has no pulse and has stopped breathing; attempts to restore circulation of the blood and prevent death or brain damage due to lack of oxygen