Definition of: stool

(stl) noun
1. A backless and armless seat intended for one person.
2. A low bench or portable support for the feet or for the knees in kneeling.
3. A seat used in defecating; a privy.
4. The matter evacuated from the bowels.
5. Bot. a A plant from which young plants are produced, as from runners. b A stump or root of any kind from which suckers or sprouts shoot up. c. The shoots from such a root or stump.
6. A decoy, as a bird or likeness of one.
—v.i.
1. To send up shoots or suckers.
2. To decoy wild fowl with a stool or stools.
3. To void feces.
4. U.S. Slang To be a stool pigeon; inform. [OE stōl]