Definify.com
Webster 1913 Edition
Henna
Hen′na
,Noun.
1.
(Bot.)
A thorny tree or shrub of the genus
Lawsonia
(Lawsonia alba
). The fragrant white blossoms are used by the Buddhists in religious ceremonies. The powdered leaves furnish a red coloring matter used in the East to stain the nails and fingers, the manes of horses, etc. 2.
(Com.)
The leaves of the henna plant, or a preparation or dyestuff made from them.