fer·​til·​i·​za·​tion | \ ˌfər-tə-lə-ˈzā-shən How to pronounce fertilization (audio) \

Definition of fertilization

: an act or process of making fertile: such as
a : the application of fertilizer
b(1) : an act or process of fecundation, insemination, or pollination not used technically
(2) : the process of union of two gametes whereby the somatic chromosome number is restored and the development of a new individual is initiated

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Examples of fertilization in a Sentence

Recent Examples on the Web

The bills up for approval in Wisconsin don't go that far or attempt to further restrict the state's ban on abortions 20 weeks after fertilization. Scott Bauer And Todd Richmond, chicagotribune.com, "Wisconsin Legislature to send anti-abortion bills to Democratic governor, who vows to veto them," 5 June 2019 Levonorgestrel decreases in efficacy over time and doesn’t work as effectively after a sharp uptick of luteinizing hormone (LH) tells one of your ovaries to release an egg for fertilization. Natasha Lavender, SELF, "7 Myths About Emergency Contraception You Should Stop Believing," 8 Apr. 2019 Self-fertilization, on the other hand, produces clones exclusively. Katherine J. Wu, Smithsonian, "Alternatives to Heterosexual Pairings, Brought to You By Non-Human Animals," 28 June 2018 As admirably sketched out in the show’s final rooms, however, the brilliant effects of their early artistic cross-fertilization never truly disappeared. Mary Tompkins Lewis, WSJ, "‘Mantegna and Bellini’ Review: A Family Affair," 3 Nov. 2018 Brayden was the product of a third in-vitro fertilization attempt. Elizabeth Gulino, House Beautiful, "Christina Anstead Opens Up About "Brutal" First Trimester of Pregnancy," 26 Mar. 2019 The inflammation that results from this disease may make the lining of the uterus less receptive to an embryo or cause scarring and blockage of the fallopian tubes, thus preventing fertilization from taking place. Jennifer Gerson, Marie Claire, "Why Can't I Get Pregnant?," 1 Oct. 2018 The science behind this is sketchy at best — daily birth control pills, hormonal IUDs, and emergency contraception all work primarily by inhibiting fertilization of an egg, not by preventing implantation of a fertilized embryo. Anna North, Vox, "Kavanaugh’s description of birth control as “abortion-inducing drugs,” explained," 7 Sep. 2018 Over-fertilization can cause plants to grow leggy and can even kill them. Molly Marquand, Good Housekeeping, "5 Mistakes You’re Making With Your Fiddle-Leaf Fig," 15 Aug. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fertilization.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fertilization

circa 1787, in the meaning defined above

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Statistics for fertilization

Last Updated

9 Jun 2019

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Time Traveler for fertilization

The first known use of fertilization was circa 1787

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More Definitions for fertilization


fer·​til·​iza·​tion | \ ˌfər-tə-lə-ˈzā-shən How to pronounce fertilization (audio) \

Kids Definition of fertilization

1 : an act or process of making fertile fertilization of a new lawn
2 : the joining of an egg cell and a sperm cell to form the first stage of an embryo


variants: or British fertilisation \ ˌfərt-​ᵊl-​ə-​ˈzā-​shən How to pronounce fertilisation (audio) \

Medical Definition of fertilization

: an act or process of making fertile: as
a : an act or process of fecundation, insemination, or impregnation
b : the process of union of two gametes whereby the somatic chromosome number is restored and the development of a new individual is initiated

Other Words from fertilization

fertilize or British fertilise \ ˈfərt-​ᵊl-​ˌīz How to pronounce fertilise (audio) \ transitive verb fertilized or British fertilised; fertilizing or British fertilising

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More from Merriam-Webster on fertilization

Rhyming Dictionary: Words that rhyme with fertilization

Spanish Central: Translation of fertilization

Nglish: Translation of fertilization for Spanish Speakers

Britannica.com: Encyclopedia article about fertilization

Comments on fertilization

What made you want to look up fertilization? Please tell us where you read or heard it (including the quote, if possible).


to move with exaggerated bouncy motions

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