Witch hazel is a liquid that you put on your skin if it is sore or damaged, in order to help it to heal.
witch hazel in British English
or wych-hazel
noun
1.
any of several trees and shrubs of the genus Hamamelis, esp H. virginiana, of North America, having ornamental yellow flowers and medicinal properties: family Hamamelidaceae
2.
an astringent medicinal solution containing an extract of the bark and leaves of H. virginiana, applied to treat bruises, inflammation, etc
witch hazel in American English
1.
any of a genus (Hamamelis) of small North American and Asiatic trees and shrubs of the witch hazel family; esp., a tall shrub (H. virginiana) of E North America, having yellow, wavy-petaled flowers in late autumn and woody fruit
2.
a lotion consisting of an alcoholic solution of an extract from the leaves and bark of this shrub, used on bruises, inflammations,etc.
3.
designating a family (Hamamelidaceae, order Hamamelidales) of dicotyledonous trees and shrubsof temperate regions, having flowers in heads or spikes, including the liquidambars
Word origin
altered (infl. by witch) < wyche hazel < ME wyche < OE wice, applied to trees with pliant branches, akin to ON veikr, weak