rust vs wheat rust

wheat rust vs rust

rust and wheat rust both are nouns.

rust is an adjective but wheat rust is not an adjective.

rust is a verb but wheat rust is not a verb.

Word	Noun	Adjective	Verb	Adverb
rust	Yes	Yes	Yes	No
wheat rust	Yes	No	No	No

As nouns, wheat rust is a hyponym of rust; that is, wheat rust is a word with a more specific, narrower meaning than rust:

rust: any of various fungi causing rust disease in plants
wheat rust: rust fungus that attacks wheat

Other hyponyms of rust include flax rust, flax rust fungus, Melampsora lini, blister rust, Cronartium ribicola, Puccinia graminis, apple rust, cedar-apple rust, Gymnosporangium juniperi-virginianae.

rust (noun)	wheat rust (noun)
A strong reddish brown color.	rust fungus that attacks wheat
any of various fungi causing rust disease in plants
the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture

rust (adjective)	wheat rust (adjective)
of the brown color of rust

rust (verb)	wheat rust (verb)
become destroyed by water, air, or a corrosive such as an acid
cause to deteriorate due to the action of water, air, or an acid
become coated with oxide

Difference between rust and wheat rust

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