[n] an effigy in the shape of a man to frighten birds away from seeds
1. Anything set up to frighten crows or other birds from cornfields; hence, anything terifying without danger. A scarecrow set to frighten fools away. --Dryden.
2. A person clad in rags and tatters. No eye hath seen such scarecrows. I'll not march with them through Coventry, that's flat. --Shak.
3. (Zo["o]l.) The black tern. [Prov. Eng.]