red rust

red rust
noun
1.
a. : the uredinial stage of a rust (as of a cereal grass)
b. : the diseased condition produced by such fungi
2. : an infestation of plants by red spiders
3.
a. : a disease of the leaves or twigs of tropical or subtropical plants (as tea and citrus) characterized by a rusty appearance and caused by a parasitic green alga (Cephaleuros virescens) of the family Trentepohliaceae — called also algal disease
b. : the alga producing red rust of tea

* * *

red rust,
a phase of certain rust fungi in which rapidly reproducing orange or brownish spores are formed.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • red rust — noun Date: 1846 1. the uredinial stage of a rust 2. the diseased condition produced by red rust …   New Collegiate Dictionary

  • rust — /rust/, n. 1. Also called iron rust. the red or orange coating that forms on the surface of iron when exposed to air and moisture, consisting chiefly of ferric hydroxide and ferric oxide formed by oxidation. 2. any film or coating on metal caused …   Universalium

  • rust — {{11}}rust (n.) O.E. rust, related to rudu redness, from P.Gmc. *rusta (Cf. Fris. rust, O.H.G., Ger. rost, M.Du. ro(e)st), from PIE *reudh s to (Cf. Lith. rustas brownish, rudeti to rust; L. robigo, O.C.S. ruzda …   Etymology dictionary

  • rust rusty rust-colored — colorful colorful adj. 1. having striking color. Opposite of {colorless}. Note: [Narrower terms: {changeable, chatoyant, iridescent, shot}; {deep, rich}; {flaming}; {fluorescent, glowing}; {prismatic}; {psychedelic}; {red, ruddy, flushed,… …   The Collaborative International Dictionary of English

  • red blood-red carmine cerise cherry cherry-red crimson ruby ruby-red scarlet — colorful colorful adj. 1. having striking color. Opposite of {colorless}. Note: [Narrower terms: {changeable, chatoyant, iridescent, shot}; {deep, rich}; {flaming}; {fluorescent, glowing}; {prismatic}; {psychedelic}; {red, ruddy, flushed,… …   The Collaborative International Dictionary of English

  • red reddish — colorful colorful adj. 1. having striking color. Opposite of {colorless}. Note: [Narrower terms: {changeable, chatoyant, iridescent, shot}; {deep, rich}; {flaming}; {fluorescent, glowing}; {prismatic}; {psychedelic}; {red, ruddy, flushed,… …   The Collaborative International Dictionary of English

  • red ruddy flushed empurpled — colorful colorful adj. 1. having striking color. Opposite of {colorless}. Note: [Narrower terms: {changeable, chatoyant, iridescent, shot}; {deep, rich}; {flaming}; {fluorescent, glowing}; {prismatic}; {psychedelic}; {red, ruddy, flushed,… …   The Collaborative International Dictionary of English

  • Rust — Rust, n. [AS. rust; akin to D. roest, G. & Sw. rost, Icel. ry[eth]; named from its color, and akin to E. red. [root]113. See {Red}.] 1. (Chem.) The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide or… …   The Collaborative International Dictionary of English

  • Rust joint — Rust Rust, n. [AS. rust; akin to D. roest, G. & Sw. rost, Icel. ry[eth]; named from its color, and akin to E. red. [root]113. See {Red}.] 1. (Chem.) The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide… …   The Collaborative International Dictionary of English

  • Rust mite — Rust Rust, n. [AS. rust; akin to D. roest, G. & Sw. rost, Icel. ry[eth]; named from its color, and akin to E. red. [root]113. See {Red}.] 1. (Chem.) The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide… …   The Collaborative International Dictionary of English

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