Definition of "fertilizer" []

• Any of a large number of natural and synthetic materials, including manure and nitrogen, phosphorus, and potassium compounds, spread on or worked into soil to increase its capacity to support plant growth. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Most people, when they use the term fertilizer, think primarily of artificial fertilizer."
• ""Right now nitrogen fertilizer is like 115 million tons per year around the world," added Rao."
• "As Beatrix has reminded you, bad information about your organic fertilizer is just as dangerous as cutworms."