un·​fer·​til·​ized ˌən-ˈfər-tə-ˌlīzd How to pronounce unfertilized (audio)
: not made fertile : not fertilized
an unfertilized egg
unfertilized soil

Example Sentences

Recent Examples on the Web Parthenogenesis is the development of viable offspring from unfertilized eggs, no sperm necessary. Avery Hurt, Discover Magazine, 17 Nov. 2021 Instead of figuring out when fertilization was happening inside a lizard, the researchers used unfertilized eggs instead. Roni Dengler, Discover Magazine, 28 Aug. 2019 Known to the world as a delicacy, caviar is unfertilized fish eggs with a salty taste. Clare Mulroy, USA TODAY, 4 Oct. 2022 Meiotic drive is a type of competition within the genome of unfertilized eggs, where variations of different genes can manipulate the cell division process to favor their own transmission to the offspring over other variations. Kathryn Kavanagh, The Conversation, 1 Sep. 2022 Kono is particularly proud of the chochin, an ovary surrounding an unfertilized egg, still clinging to its fallopian tube and liver. Caroline Hatchett, Robb Report, 1 Aug. 2022 The scientists also gathered crustaceans that had spent time in aquariums with reproductive male seaweed plants and relocated them to tanks containing unfertilized female plants. Sarah Kuta, Smithsonian Magazine, 29 July 2022 Next, scientists retrieve an unfertilized egg from another donor animal. Washington Post, 11 Apr. 2022 Whereas the goal with IVF is to produce an embryo that will then be implanted in a patient’s body, oocyte cryopreservation banks unfertilized eggs for later use. Courtney Vinopal, Quartz, 8 Feb. 2022 See More

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

Word History

First Known Use

circa 1775, in the meaning defined above

Time Traveler
The first known use of unfertilized was circa 1775

Dictionary Entries Near unfertilized

Cite this Entry

“Unfertilized.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfertilized. Accessed 2 Feb. 2023.

Medical Definition


un·​fer·​til·​ized -ˈfərt-ᵊl-ˌīzd How to pronounce unfertilized (audio)
: not fertilized
an unfertilized egg
Last Updated: - Updated example sentences
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