RUST


Meaning of RUST in English

n.

Pronunciation: ' r ə st

Function: noun

Etymology: Middle English, from Old English r ū st; akin to Old English r ē ad red ― more at RED

Date: before 12th century

1 a : the reddish brittle coating formed on iron especially when chemically attacked by moist air and composed essentially of hydrated ferric oxide b : a comparable coating produced on a metal other than iron by corrosion c : something resembling rust : ACCRETION

2 : corrosive or injurious influence or effect

3 : any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by usually reddish-brown pustular lesions also : a fungus causing this

4 : a strong reddish brown

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.