fertilization

noun
fer·til·i·za·tion | \ˌfər-tə-lə-ˈzā-shən \

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

Examples of fertilization in a Sentence

Recent Examples on the Web

Thawed sperm have fertilization rates comparable to fresh sperm, and the resulting embryos develop normally into healthy juveniles. Rebecca Albright, Scientific American, "Scientists Are Taking Extreme Steps to Help Corals Survive," 1 Jan. 2018 These nonhormonal early versions probably worked by interfering with ovulation, fertilization, or implantation by causing mild inflammation of the endometrium. Carolyn Todd, Allure, "The History and Evolution of Birth Control in America," 12 July 2018 The mammalian fertilization process involving the sperm and egg wasn’t even observed until the late 19th century, so our understanding of reproduction was pretty limited for most of human history. Carolyn Todd, Allure, "The History and Evolution of Birth Control in America," 12 July 2018 If fertility medications don't work on their own, IUI is often the next step: A doctor aids the fertilization process by separating sperm from semen, then depositing it into the uterus on ovulation day. Norine Dworkin-mcdaniel, Redbook, "Infertility Treatments: What Women Need To Know," 10 Oct. 2011 More: Sudan, the world’s last male northern white rhino, dies at age 45 The Leibniz Institute researchers were supported by Italian company Avantea, which specializes in fertilization of cattle and horses. Deutsche Welle, USA TODAY, "Northern white rhino could be saved from extinction using embryos," 5 July 2018 The next challenge was to achieve fertilization in the lab with frozen semen collected from three northern white rhino bulls. Deborah Netburn, latimes.com, "How IVF might save northern white rhinos, the world's most endangered species," 4 July 2018 Capable of becoming pregnant all on her own, Leonie swiftly employed parthenogenesis, a form of asexual reproduction that generates and grows embryos sans fertilization, a.k.a., sans help from Papa Shark. Sarah Schreiber, Good Housekeeping, "Female Shark Gets Pregnant on Her Own, Is the Ultimate Heartbreaker," 18 Jan. 2017 Fetal personhood proposals, like the bill rejected by South Carolina’s Senate last week, typically state that human life begins upon fertilization. Erin Heidt-forsythe And Heather Silber Mohamed, Washington Post, "The politics of assisted reproduction, explained," 13 May 2018

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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Last Updated

13 Oct 2018

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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

fertilization

noun
fer·til·iza·tion | \ˌfər-tə-lə-ˈzā-shən \

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

fertilization

noun
fer·til·iza·tion
variants: or British fertilisation \ˌfərt-ᵊl-ə-ˈzā-shən \

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 \ transitive verb fertilized or British fertilised; fertilizing or British fertilising

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