noun os·tra·cod \ˈä-strə-ˌkäd\
variants: or less commonly


play \ˈä-strə-ˌkōd\

Definition of ostracod

  1. :  any of a subclass (Ostracoda) of very small aquatic crustaceans that have the body enclosed in a bivalve carapace, the body segmentation obscured, the abdomen rudimentary, and only seven pairs of appendages

Origin and Etymology of ostracod

ultimately from Greek ostrakon

First Known Use: 1865

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