noun

1. any of a genus (Corylus) of shrubs or trees of the birch family, bearing edible nuts
2. hazelnut
3. 1. the wood of this tree or shrub
   2. a stick of this wood
4. the color of a ripened hazelnut; reddish brown

Etymology: ME hasel < OE hæsel, akin to Ger hasel < IE *kos(e)lo-, hazel > L corulus, hazel bush, OIr coll, hazel

adjective

1. of the hazel tree or its wood
2. light reddish-brown or yellowish-brown
3. greenish-gray or greenish-brown, often with flecks of a third color: said of eyes