1. Any of several herbs of the genus Digitalis, especially D. purpurea of Europe, having a long cluster of large, tubular, pinkish-purple flowers and leaves that are the source of the drug digitalis.
2. Any of several related plants.

[From the resemblance of its flowers to the fingers of a glove.]

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.