0 a chemical substance containing aluminium used in dyeing (= changing the colour of something) and as an astringent (= substance that causes skin to tighten) --
The route was used mainly to haul chemicals such as coal, powdered alum, chlorine, ammonia, and sand.
O yields after 30 subsequent steps pure rubidium alum.
Early papermakers did not realize that the alum they added liberally to cure almost every problem encountered in making their product would eventually be detrimental.
He received his undergraduate degree in communication while graduating with honors in 1991, and is listed as one of the soccer program's top 25 alums.
A more gentle treatment calls for 5-10 tablespoons of alum to 1 gallon of water for 23 days.
Some common astringent agents include alum, acacia, sage, yarrow, witch hazel, bayberry, distilled vinegar, very cold water, and rubbing alcohol.
An adjoining property was being demolished by the corporation in connection with their alum clearance scheme.
An ordnance survey of my division shows old alum mines there.
