Word.ws English Dictionary

alum in Persian

زاج zâj

/ˈæl.əm/

alum in Persian: زاج (zâj). In English, alum means an astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K₂SO₄·Al₂(SO₄)₃·24H₂O).

Persian words for alum

chemistry: double sulfate
زاج zâj

English meaning of alum

  1. noun An astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K₂SO₄·Al₂(SO₄)₃·24H₂O).
  2. noun Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations.
  3. verb To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.
  4. noun A past attendee or graduate (of any gender) of a college, university or other educational institution.

Full definition of alum

Synonyms of alum

alum in other languages

Questions about alum in Persian

What is the meaning of alum in Persian?
Alum in Persian is زاج (zâj).
معنی alum چیست؟
Alum: زاج (zâj).
What does alum mean in English?
Alum means an astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K₂SO₄·Al₂(SO₄)₃·24H₂O).

Source and license

Adapted from Wiktionary: alum (page history and authors), its translation table and English meanings. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the Persian words and English meanings and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-alum (salt).wav.

Cite this page: “alum meaning in Persian.” Word.ws, https://word.ws/persian/alum. Based on Wiktionary, CC BY-SA 4.0.