Macadamia vs Hazel - What's the difference?

As a noun macadamia

is .

from the plant or colour hazel popular in the us at the turn of the 20th century.

(wikipedia macadamia) (wikispecies)

An evergreen tree, of the genus Macadamia , native to Australia and cultivated in Hawaii

The fruit of this tree; the macadamia nut

(wikipedia hazel)

(en-noun)

A tree or shrub of the genus Corylus , bearing edible nuts called hazelnuts or filberts.

The nut of the hazel tree.

The wood of a hazelnut tree.

A greenish-brown colour, the colour of a ripe hazelnut.

(mining) freestone

(Raymond)

* , Scene I *: Kate, like the hazel -twig, *: Is straight and slender, and as brown in hue *: As hazel nuts, and sweeter than the kernels.

* (nut) filbert, hazelnut

Of a greenish-brown colour. (often used to refer to eye colour)

* hazel grouse * hazelnut * witch hazel/wych hazel