oocyst

noun
oo·​cyst | \ ˈō-ə-ˌsist How to pronounce oocyst (audio) \

Definition of oocyst

: zygote specifically : a sporozoan zygote undergoing sporogenous development

Examples of oocyst in a Sentence

Recent Examples on the Web As the only known hosts of the parasite, domesticated and feral felines then spread deadly strains into their environment through oocysts—egg-like structures teeming with millions of immature T. gondii—shed in feces. Meilan Solly, Smithsonian, "Parasite Spread by House Cats Is Killing California’s Sea Otters," 30 Aug. 2019 Forbes notes that rainwater carries contaminated cat excrement to the coast, sending oocysts flooding into sea otters’ habitats. Meilan Solly, Smithsonian, "Parasite Spread by House Cats Is Killing California’s Sea Otters," 30 Aug. 2019 The unsuspecting mammals also accidentally ingest oocysts when grooming or hunting down other food sources. Meilan Solly, Smithsonian, "Parasite Spread by House Cats Is Killing California’s Sea Otters," 30 Aug. 2019 Their eggs—known as oocysts—can survive in soil, smeared onto foliage, and floating in seawater for months up to years at a time. Kim Steutermann Rogers, Smithsonian, "How the Tiniest of Parasites is Taking Down the Mightiest of Monk Seals," 9 July 2018 The water bureau detected 12 oocysts of the parasite in 2,200 liters of water from January 1 to March 8, according to the state's letter. Jessica Floum, OregonLive.com, "Parasite levels in Portland's drinking water surpass state limits, will cost city at least $90M," 23 May 2017

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

See More

First Known Use of oocyst

1875, in the meaning defined above

History and Etymology for oocyst

International Scientific Vocabulary

Keep scrolling for more

Learn More about oocyst

Time Traveler for oocyst

Time Traveler

The first known use of oocyst was in 1875

See more words from the same year

Statistics for oocyst

Cite this Entry

“Oocyst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oocyst. Accessed 27 Jan. 2021.

Keep scrolling for more

More Definitions for oocyst

oocyst

noun
oo·​cyst | \ ˈō-ə-ˌsist How to pronounce oocyst (audio) \

Medical Definition of oocyst

: zygote specifically : a sporozoan zygote undergoing sporogenous development

More from Merriam-Webster on oocyst

Britannica.com: Encyclopedia article about oocyst

Comments on oocyst

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

WORD OF THE DAY

Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!