Definition of hazel

• n. - A shrub or small tree of the genus Corylus, as the C. avellana, bearing a nut containing a kernel of a mild, farinaceous taste; the filbert. The American species are C. Americana, which produces the common hazelnut, and C. rostrata. See Filbert.
• n. - A miner's name for freestone.
• a. - Consisting of hazels, or of the wood of the hazel; pertaining to, or derived from, the hazel; as, a hazel wand.
• a. - Of a light brown color, like the hazelnut.