Origin of rust
before 900; (noun) Middle English; Old English
rūst; cognate with German
Rost; (v.) Middle English
rusten, derivative of the noun; akin to
red1
OTHER WORDS FROM rust
de·rust, verb (used with object) un·rust, verb (used with object)Words nearby rust
British Dictionary definitions for derust
rust
/ (rʌst) /
noun
a reddish-brown oxide coating formed on iron or steel by the action of oxygen and moisture
Also called: rust fungus plant pathol
- any basidiomycetous fungus of the order Uredinales, parasitic on cereal plants, conifers, etc
- any of various plant diseases characterized by reddish-brown discoloration of the leaves and stem, esp that caused by the rust fungi
- a strong brown colour, sometimes with a reddish or yellowish tinge
- (as adjective)a rust carpet
any corrosive or debilitating influence, esp lack of use
verb
to become or cause to become coated with a layer of rust
to deteriorate or cause to deteriorate through some debilitating influence or lack of use
he allowed his talent to rust over the years
Derived forms of rust
rustless, adjectiveWord Origin for rust
Old English
rūst; related to Old Saxon, Old High German
rost
Medical definitions for derust
rust
[ rŭst ]
n.
Any of a group of parasitic fungi of the order Uredinales that are plant pathogens, especially of cereal grains, and that can produce allergy in humans when inhaled in large numbers.
Scientific definitions for derust
rust
[ rŭst ]
Noun
Any of the various reddish-brown oxides of iron that form on iron and many of its alloys when they are exposed to oxygen in the presence of moisture.
- Any of various basidiomycete fungi that are parasitic on plants and produce reddish or brownish spots on leaves. Rusts attack a wide variety of plants and can cause enormous damage to crops.
- Any of the various plant diseases caused by these fungi.
Verb
To become corroded or oxidized.