made by art; not natural or pathologic. 1  artificial respiration any method of forcing air into the lungs in a person who still has a pulse but whose breathing has stopped. Artificial respiration can be given with no equipment, so that it is an ideal emergency first aid procedure. 2  Indications.
stool pigeon - someone acting as an informer or decoy for the police. canary, fink, snitch, stoolie, stoolpigeon, sneaker, snitcher, sneak. betrayer, blabber, informer, squealer, rat - one who reveals confidential information in return for money.
He must decide whether to assume the young man is a stool pigeon or not -- effectively whether he must kill him, lest he foil the escape, or invite him to escape with him. A masterfully spun prison flick. Forbidden insults have included coward, guttersnipe, hooligan, rat, stool pigeon, swine, and traitor.