fertilize

verb

fer·​til·​ize ˈfər-tə-ˌlīz How to pronounce fertilize (audio)
fertilized; fertilizing

transitive verb

: to make fertile: such as
a
: to apply a fertilizer to
fertilize land
b
: to cause the fertilization of
fertilizable adjective

Examples of fertilize in a Sentence

A single sperm fertilizes an egg. Bees fertilize plants as they collect nectar from flowers. He fertilizes the lawn every year. The soil is so rich there is no need to fertilize.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Palms are best fertilized with products made for their needs in March, May and October. 58. Tom MacCubbin, The Orlando Sentinel, 26 July 2025 Battista Choate said the field will need to be reseeded and fertilized before the grass grows back. Marina Johnson, Louisville Courier Journal, 23 July 2025 In those cases, using the new technique, the U.K. doctors first fertilize the mother’s egg with the father’s sperm. Nancy Lapid, USA Today, 17 July 2025 Instead, emergency contraceptive pills prevent an egg from being released from the ovaries, while IUDs, depending on the type, prevent sperm from fertilizing an egg or prevent an egg from implanting in the uterus. Carol S. Weisman, The Conversation, 23 June 2025 See All Example Sentences for fertilize

Word History

First Known Use

1621, in the meaning defined above

Time Traveler
The first known use of fertilize was in 1621

Browse Nearby Words

Cite this Entry

“Fertilize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fertilize. Accessed 1 Aug. 2025.

Kids Definition

fertilize

verb
fer·​til·​ize ˈfərt-ᵊl-ˌīz How to pronounce fertilize (audio)
fertilized; fertilizing
: to make fertile: as
a
: to cause the fertilization of
also : to unite with in the process of fertilization
a sperm fertilizes an egg
b
: to apply a fertilizer to
fertilize land

More from Merriam-Webster on fertilize

Last Updated: - Updated example sentences
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