plural noun
Os·tra·co·da | \ ˌästrəˈkōdə , äˈstrakədə \

Definition of Ostracoda 

: a subclass of crustacea comprising small active mostly freshwater forms having the body enclosed in a bivalve shell composed of right and left valves, the body segmentation obscured, the abdomen rudimentary, and only seven pairs of appendages

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Other words from Ostracoda

ostracodan \-dᵊn \ adjective
ostracodous \-dəs \ adjective

History and Etymology for Ostracoda

New Latin, from Greek ostrakōdēs testaceous, from ostrakon potsherd, shell

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occurring twice a year or every two years

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