1. Either of two annual lupines (Lupinus texensis and L. subcarnosus) native to Texas and having palmately compound leaves and light blue flowers. Also called Texas bluebonnet.
2. 1. A broad, blue woolen cap worn in Scotland.
   2. A person wearing such a cap.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.