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chlorosis

/klɔɹˈoʊsɪs/noun

chlorosis is a noun meaning “An anaemia, due to deficiency of iron, characterized by a yellow-green coloration of the skin” (English Wiktionary, September 2026). It is spelled C-H-L-O-R-O-S-I-S, and it appears about once in every 21 million words in written English (wordfreq, 2021 data). The plural of chlorosis is chloroses.

What does chlorosis mean?

noun

  1. 1

    An anaemia, due to deficiency of iron, characterized by a yellow-green coloration of the skin.

  2. 2

    A yellowing of plant tissue due to loss or absence of chlorophyll.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce chlorosis?

  • UK /kləˈɹəʊsɪs/
  • UK /klɔː-/
  • US /klɔɹˈoʊsɪs/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Neøn-chlorosis.wav, Wikimedia Commons (author and licence on each file's page).

Forms of chlorosis

  • chloroses plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is chlorosis?

Chlorosis appears about once in every 21 million words in written English, the 139,999th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Chlorosis in Spanish, French, German and Portuguese

In the sense yellow-green colouration of the skin:

LanguageWords
Frenchchlorose
Portugueseclorose, cloremia
Spanishclorosis

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does chlorosis come from?

From international scientific vocabulary, from New Latin; by surface analysis, chlor- + -osis, where chlor- in this instance refers to pale yellow-green colorations and not to chlorine.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).