[os.tra.cod] also os.tra.code n [ultim. fr. Gk ostrakon] (1865): any of a subclass (Ostracoda) of very small active mostly freshwater crustaceans that have the body enclosed in a bivalve carapace, the body segmentation obscured, the abdomen rudimentary, and only seven pairs of appendages
OSTRACOD
Meaning of OSTRACOD in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012