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.
For a long time I took that as an order, as if I were one of those nervous perspiring characters that would have been played by Sam Kydd in the old black-and-white days, a stool pigeon maybe who had grassed up Eddie the Chiv to the Old Bill and stood in peril of having his head nailed to the coffee table.