D defs.my
Entry 3 senses Webster, 1913

Blue bonnet

/blo͞o bän'-ət/ · Blue· bon·net · IPA /ˈbluː ˌbɒnɪt/
01 n. A broad, flat Scottish cap of blue woolen, or one wearing such cap; a Scotchman.
  1. 1.
    A broad, flat Scottish cap of blue woolen, or one wearing such cap; a Scotchman.
  2. 2.
    A plant. Same as Bluebottle.(Bot.) See: Bluebottle
  3. 3.
    The European blue titmouse (Parus cœruleus); the bluecap.(Zool.)