witch hazel

Short definition from Wiktionary

Noun

1. 1
   Any of several small deciduous trees, of the genus Hamamelis, having yellow flowers: Hamamelis virginiana (eastern North America)
2. 2
   Any of several small deciduous trees, of the genus Hamamelis, having yellow flowers: Hamamelis vernalis (Ozarks).
3. 3
   An extract of the bark and/or leaves of this plant, used as an astringent
4. 4
   A wych-elm, or a certain subspecies of it distinguished from wych-elm.
5. 5
   hornbeam, Carpinus betulus
6. 6
   Alternative spelling of witch hazel.