\Blue" bon`net\ or Blue-bonnet \Blue"-bon`net\, n.
1. A broad, flat Scottish cap of blue woolen, or one wearing
   such cap; a Scotchman.
2. (Bot.) A plant. Same as {Bluebottle}.
3. (Zo["o]l.) The European blue titmouse ({Parus
   c[oe]ruleus}); the bluecap.