Source : Webster's Revised Unabridged Dictionary (1913)

Witch-hazel \Witch"-ha`zel\, n. [See {Wych-elm}, and {Hazel}.]
   (Bot.)
   The wych-elm.
   (b) An American shrub or small tree ({Hamamelis Virginica}),
       which blossoms late in autumn.

Hamamelis \Ham`a*me"lis\, n. [NL., fr. Gr. ? a kind of medlar or
   service tree; ? at the same time + ? an apple, any tree
   fruit.] (Bot.)
   A genus of plants which includes the witch-hazel ({Hamamelis
   Virginica}), a preparation of which is used medicinally.