Word.ws English Dictionary

furruginous

furruginous is the alternative form of ferruginous.

Meaning of ferruginous

Adjective

ferruginous (comparative more ferruginous, superlative most ferruginous)

  1. Synonym of ferrous, of or related to iron.
    Synonyms:
    ferrous, of or related to iron
  2. Synonym of rusty, of or related to rust, rust-colored.
    • A few miles north of Coquimbo, I met with the ferruginous, balaniferous mass (E) with many silicified bones; I was informed that these silicified bones occur also at Tonguay, south of Coquimbo […]1846, Charles Darwin, Geological Observations on South America
    Synonyms:
    rusty, of or related to rust, rust-colored

Forms of furruginous

comparativemore furruginous
superlativemost furruginous

Origin of furruginous

Presumably originally a misspelling of ferruginous, that remained either in error or in minority, mainly technical, use from about early 19th century to mid-20th century.

Questions about furruginous

What is furruginous the alternative form of?
Furruginous is the alternative form of ferruginous.

Words near furruginous in the dictionary

  1. furrowless
  2. furrowlike
  3. furrows
  4. furrowy
  5. furrs
  6. furruginous
  7. furrum
  8. furry
  9. furry bait
  10. Furry Creek
  11. furry dance

Source and license

Adapted from Wiktionary: furruginous (page history and authors); ferruginous (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “furruginous.” Word.ws, https://word.ws/furruginous. Based on Wiktionary, CC BY-SA 4.0.