henna Meaning, Definition & Usage

  1. noun a reddish brown dye used especially on hair
  2. verb apply henna to one's hair
    • She hennas her hair every month

WordNet

Hen"na noun
Etymology
Ar. hinna alcanna (Lawsonia inermis or alba). Cf. Alcanna, Alkanet, Orchanet.
Definitions
  1. (Bot.) A thorny tree or shrub of the genus Lawsonia (L. 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 hails and fingers, the manes of horses, etc.
  2. (Com.) The leaves of the henna plant, or a preparation or dyestuff made from them.

Webster 1913