A greenish-brown colour, the colour of a ripe hazelnut.
The wood of a hazelnut tree.
Freestone.
The nut of the hazel tree.
A tree or shrub of the genus Corylus, bearing edible nuts called hazelnuts or filberts.
Of a greenish-brown colour. (often used to refer to eye colour)
A reddish-brown color.
A similar substance based on another metal (usually with qualification, such as "copper rust").
A disease of plants caused by a reddish-brown fungus.
Damage caused to stamps and album pages by a fungal infection.
The deteriorated state of iron or steel as a result of moisture and oxidation.
To (cause to) degenerate in idleness; to make or become dull or impaired by inaction.
To oxidize, especially of iron or steel.
To cause to oxidize.
To be affected with the parasitic fungus called rust.
Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight.