- A tree or shrub (Lawsonia inermis) of the Middle East, having fragrant white or reddish flowers. (noun)
- A reddish-orange dyestuff prepared from the dried and ground leaves of this plant, used as a cosmetic dye and for coloring leather and fabrics. (noun)
- A moderate or strong reddish brown to strong brown. (noun)
- To dye (hair, for example) with henna. (verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.