Definitions
from The Century Dictionary.
- To steep in or impregnate with a solution of alum.
- noun The general name of a class of double sulphates formed by the union of aluminium, iron, chromium, or manganese sulphate with the sulphate of some other metal, commonly an alkaline metal or ammonium.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.
- transitive verb To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun US A
graduate of a university or other institution. - verb transitive To
steep in, or otherwiseimpregnate with, asolution of alum; totreat with alum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
- noun a double sulphate of aluminum and potassium that is used as an astringent (among other things)
- noun a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
- noun a person who has received a degree from a school (high school or college or university)
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The former Merck executive and Fordham University alum is giving $1 million to build a new football locker room on the university's Rose Hill campus in the Bronx.
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After a shortlived gig on the canned CW drama The Beautiful Life, the High School Musical alum is sliding back into his singing and dancing shoes to leap to “new heights” in the Tony-award winning musical.
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The Lost alum is set to guest-star on How I Met Your Mother, a show rep tells TVGuide. com.
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Boiling the samples in alum made the blue color disappear, leaving behind only the yellow of the original green sample. 3
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Tom, a Stanford alum, is no stranger to such awards.
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Another Lost alum is set to appear in the CSI franchise: Entertainment Weekly reports Harold Perrineau is set to appear in an April episode of CSI: NY, as a death row inmate who finds himself in the middle of a prison riot, just as he drops a bombshell on Hill Harper’s character.
The Tail Section » Harold Perrineau Snags CSI: NY Guest Role 2010
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Another Lost alum is set to appear in the CSI franchise: Entertainment Weekly reports Harold Perrineau is set to appear in an April episode of CSI: NY, as a death row inmate who finds himself in the middle of a prison riot, just as he drops a bombshell on Hill Harper’s character.
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The most widely used coagulant is Aluminium sulphate, commonly known as alum; Iron salts
8. Water treatment 1992
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I have, I believe, at last succeeded in arranging the proper proportions, and in substituting, for the worse than useless crude alum, the alum ustum or burnt alum, which is not affected by moisture
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Probably the alumen referred to by Pliny, as exuding from the earth, was sulphate of alumina, without potash or soda, a salt not easily crystallized, but as effective, in many cases more effective, in the operations of dyeing, as alum, which is attested by the preference given to this salt over alum for many purposes at the present day.
ruzuzu commented on the word alum
"Alum has been used at least since Roman times for purification of drinking water and industrial process water. Between 30 and 40 ppm of alum for household wastewater, often more for industrial wastewater, is added to the water so that the negatively charged colloidal particles clump together into "flocs", which then float to the top of the liquid, settle to the bottom of the liquid, or can be more easily filtered from the liquid, prior to further filtration and disinfection of the water."
-- Wikipedia (http://en.wikipedia.org/w/index.php?title=Alum&oldid=551044797)
April 24, 2013
fbharjo commented on the word alum
Adds a whole new meaning to alum-are-us. These
are fields to be explored.
April 25, 2013
chained_bear commented on the word alum
Usage note in comment on cardinal purple. Another on Francesco Pegolotti.
October 4, 2017