Definitions of stool:

• noun:   a simple seat without a back or arms
• noun:   (forestry) the stump of a tree that has been felled or headed for the production of saplings
• noun:   solid excretory product evacuated from the bowels
• noun:   a plumbing fixture for defecation and urination
• verb:   react to a decoy, of wildfowl
• verb:   lure with a stool, as of wild fowl
• verb:   have a bowel movement
• verb:   grow shoots in the form of stools or tillers