• synonyms

ammonium sulfate

noun Chemistry.
  1. a white, crystalline, water-soluble solid, (NH4)2SO4, used chiefly as a fertilizer.
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Origin of ammonium sulfate

First recorded in 1800–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

ammonium sulfate in Science

ammonium sulfate

  1. A brownish-gray to white crystalline salt used in fertilizers and water purification. Chemical formula: (NH4)2SO4.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.