How to Use oocyte in a Sentence

oocyte

noun
  • The fusion of a normal oocyte and three sperm (from one or more males).
    — Ed Yong, Discover Magazine, 11 Sep. 2010
  • Human oocytes lie dormant for decades waiting to be fertilized.
    — Dan Samorodnitsky, Quanta Magazine, 5 June 2024
  • An immature human oocyte seen down a microscope.
    — Ian Randall, MSNBC Newsweek, 4 Aug. 2025
  • Ovaries, where oocytes are born, harbor proteins that can last almost as long as the animals themselves and could help oocytes endure.
    — science.org, 3 July 2024
  • Wolf centers have collected semen and female oocytes from ovaries for about 25 years to preserve their genomes.
    — Debra Utacia Krol, azcentral, 30 Dec. 2019
  • The proteostatic landscape of healthy human oocytes.
    — Ian Randall, MSNBC Newsweek, 4 Aug. 2025
  • In young oocytes, they are situated throughout the cytoplasm.
    — Quanta Magazine, 13 May 2024
  • Also, the researchers couldn’t trace each affected pup back to its exact oocyte (precursor to an egg) donor because eggs were pooled.
    — New Atlas, 16 Aug. 2025
  • Each curve shows the percentage likelihood by age of having at least one live birth based on the number of mature eggs (oocytes) retrieved and frozen.
    — Marina Gerner, WIRED, 5 Oct. 2024
  • With just two living sources of oocytes and semen stored from five males, researchers would have to reboot an entire subspecies from a mere seven animals.
    — Stephanie Pappas, Scientific American, 13 Mar. 2018
  • Some eggs don't survive the freezing process because intercellular ice crystals emerge, which can be damaging to the oocytes (a cell in the ovary).
    — Mallory Schlossberg, Redbook, 22 Feb. 2017
  • To carry out the freeze-drying process, Wakayama’s team harvested support cells known as cumulus cells from around the oocyte of female black-furred mice.
    — Megan Molteni, STAT, 8 July 2022
  • There are now 30 embryos from the northern white rhinos that can be used to produce babies, and all are oocytes from Fatu, Hildebrandt said.
    — Rael Ombuor, Washington Post, 24 Jan. 2024
  • Of the eggs sampled, 70 were ready for fertilization, while 30 were still-developing oocytes.
    — Ian Randall, MSNBC Newsweek, 4 Aug. 2025
  • At age 35, Sun underwent oocyte cryopreservation, or egg freezing, yielding three to four eggs each cycle.
    — Courtney Vinopal, Quartz, 3 Mar. 2022
  • This law, which won’t take effect until July 2025, will require large group health care service plans to cover up to three oocyte (egg) retrievals.
    — Kaitlyn Schallhorn, Orange County Register, 27 Dec. 2024
  • But during that cycle, only one dominant follicle matures completely to release the oocyte contained within it.
    — Katherine Kornei, Discover Magazine, 27 July 2016
  • Advanced paternal age affects miscarriage and live birth outcomes following the first transfer in oocyte donation cycles.
    — Daniella Gray, MSNBC Newsweek, 29 June 2025
  • The oocytes were donated by women undergoing fertility treatment and were not suitable for use, Duval said.
    — Sandee Lamotte, CNN Money, 9 Sep. 2025
  • Because of the progressive decline in the quality of a woman's oocytes (eggs) over time, there isn't a way to naturally extend the biological clock.
    — Brennan Peterson, chicagotribune.com, 26 June 2018
  • In humans, a 20-week-old female fetus typically harbors 6 million to 7 million oocytes.
    — science.org, 3 July 2024
  • Once inside, proteins within the sperm cell’s head prompt the oocyte to finish maturing and to release chemicals that harden the outer shell of the egg, preventing other sperm from barging in.
    — Randi Hutter Epstein, New York Times, 17 Apr. 2020
  • The procedure, known as mature oocyte cryopreservation, has helped many people potentially expand their timeline for having kids.
    — Patia Braithwaite, SELF, 15 May 2021
  • The researchers produced 82 functional human oocytes, or immature egg cells, which then underwent fertilization in the lab.
    — Katie Hunt, CNN Money, 30 Sep. 2025
  • Ultimately one dominant follicle releases an oocyte, or immature egg cell.
    — Laura Kolbe, The New York Review of Books, 18 Jan. 2024
  • The egg freezing process, otherwise medically known as mature oocyte cryopreservation, is a step that some women prefer to take to prepare for family planning down the road.
    — Dominique Fluker, Essence, 21 Dec. 2023
  • The nurse cells synthesize RNA molecules that are ultimately deposited into the oocyte.
    — Discover Magazine, 15 May 2013
  • Exposure to organic carbon showed negative impacts with oocyte survival, fertilization and embryo quality, the study said.
    — Tracy J. Wholf, CBS News, 14 Mar. 2025
  • Both gonads are functional and produce spermatozoa and oocyte respectively after puberty.
    — Discover Magazine, 19 Nov. 2019
  • The news comes just weeks after a team of veterinarians achieved another milestone by harvesting 10 oocytes from the last two remaining female northern white rhinos living in Kenya.
    — Abdi Latif Dahir, Quartz Africa, 11 Sep. 2019

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'oocyte.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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