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Showing results for ostracod. Search instead for ostracea.

ostracod

American  
[os-truh-kod] / ˈɒs trəˌkɒd /

noun

  1. seed shrimp.


ostracod British  
/ ˌɒstrəˈkəʊdən, ˈɒstrəˌkɒd /

noun

  1. any minute crustacean of the mainly freshwater subclass Ostracoda, in which the body is enclosed in a transparent two-valved carapace

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • ostracodan adjective
  • ostracodous adjective

Etymology

Origin of ostracod

1860–65; < New Latin Ostracoda name of the subclass < Greek ostrakṓdēs, equivalent to óstrak ( on ) shell, tile ( see ostracize) + -ōdēs -ode 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That is 273 million years earlier than the glowing ostracod crustaceans that previously held the title of earliest evolution of bioluminescence in animals.

From Science Daily • Apr. 23, 2024

The ostracod genome is longer than our own and has repetitive regions and other complexities that make it challenging to sequence from single specimens snared at sea.

From Science Magazine • Aug. 24, 2022

Moreover, those tiny differences in the ostracod luciferase “correlate with different types of signals,” as this enzyme’s activity can dictate the brightness, duration, and other features of each flash.

From Science Magazine • Aug. 24, 2022

So they were able to compare characteristics of extinct ostracod species with the abundant living species.

From Salon • Jun. 8, 2018

Seventy million years ago, in a warm shallow sea, swam an ostracod — a tiny bean-shaped creature, no bigger than a grain of sand.

From Salon • Jun. 8, 2018