rust

名词 n. 动词 v.
/ɹʌst/    /ɹʌst/

英文释义

名词 n.
  1. The deteriorated state of iron or steel as a result of moisture and oxidation; it consists mostly of iron(III) oxide (ferric oxide) and iron(II) oxide (ferrous oxide). countable,uncountable
    — The rust on my bicycle chain made cycling to work very dangerous.
  2. A similar substance based on another metal. countable,uncountable
    — copper rust
  3. A reddish-brown color. countable,uncountable
  4. A disease of plants caused by a reddish-brown fungus (Pucciniales). countable,uncountable
  5. Damage caused to stamps and album pages by a fungal infection. countable,uncountable
动词 v.
  1. To oxidize, especially of iron or steel. intransitive
    — The patio furniture had rusted in the wind-driven spray.
  2. To cause to oxidize. transitive
    — The wind-driven spray had thoroughly rusted the patio furniture.
  3. To be affected with the parasitic fungus called rust. intransitive
    — I am sorry to say that, contrary to the majority, I have to report that the forage rusted rather badly.
  4. To (cause to) degenerate in idleness; to make or become dull or impaired by inaction. ambitransitive,figuratively
    — Must I rust in Egypt? never more / Appear in arms, and be the chief of Greece?
  5. Of a black cat or its fur, to turn rust-coloured following long periods of exposure to sunlight. intransitive
    — It's very common for black cats to rust during the summer.

词形变化

rusts plural rusts present,singular,third-person rusting participle,present rusted participle,past rusted past

词源

词源 1
From Middle English rust, rost, roust, from Old English rust, rūst (“rust”), from Proto-West Germanic *rust, from Proto-Germanic *rustaz (“rust”), from Proto-Indo-European *rudʰso- (“red”), from Proto-Indo-European *h₁rewdʰ- (“red”).
Cognate with Scots roust (“rust”), Saterland Frisian rust (“rust”), West Frisian roast (“rust”), Dutch roest (“rust”), German Rost (“rust”), Danish rust (“rust”), Swedish rost (“rust”), Norwegian rust, ryst (“rust”), Finnish ruoste, Estonian rooste. Related to red.
词源 2
From Middle English rusten, from the noun (see above).
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