Transcription
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- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
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- [al-uh m]
- /ˈæl əm/
- /ˈæl.əm/
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- US Pronunciation
- US IPA
-
- [al-uh m]
- /ˈæl əm/
Definitions of alum word
- countable noun alum An alum is the same as an alumnus. 3
- noun alum a colourless soluble hydrated double sulphate of aluminium and potassium used in the manufacture of mordants and pigments, in dressing leather and sizing paper, and in medicine as a styptic and astringent. Formula: K2SO4.Al2(SO4)3.24H2O 3
- noun alum any of a group of isomorphic double sulphates of a monovalent metal or group and a trivalent metal. Formula: X2SO4.Y2(SO4)3.24H2O, where X is monovalent and Y is trivalent 3
- noun alum an alumnus or alumna 3
- noun alum a double sulfate of a monovalent metal or radical (as sodium, potassium, or ammonium) with a trivalent metal (as aluminum, iron, or chromium): it is used as an astringent, as an emetic, and in the manufacture of baking powders, dyes, and paper: the commonest form is potash alum (potassium aluminum sulfate), KAl(SO4)2·12H2O 3
- noun alum aluminum sulfate: an erroneous use 3
Information block about the term
Origin of alum
First appearance:
before 1275 One of the 13% oldest English words
1275-1325; Middle English < Anglo-French < Latin alūmen; replacing Old English alefne, ælifnæ < Old Welsh (compare MWelsh elyf) < Latin alūmini- (stem of alūmen)
Historical Comparancy
Parts of speech for Alum
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
alum popularity
A common word. It’s meaning is known to most children of preschool age. About 96% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".
alum usage trend in Literature
This diagram is provided by Google Ngram ViewerSynonyms for alum
noun alum
- postgraduate — of, pertaining to, characteristic of, or consisting of post-graduates: a postgraduate seminar.
- recipient — a person or thing that receives; receiver: the recipient of a prize.
- doctor — a person licensed to practice medicine, as a physician, surgeon, dentist, or veterinarian.
- product — a thing produced by labor: products of farm and factory; the product of his thought.
- bachelor — A bachelor is a man who has never married.
Antonyms for alum
noun alum
- undergraduate — a student in a university or college who has not received a first, especially a bachelor's, degree.
Top questions with alum
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