əˈnästrəkə noun plural
Usage: capitalized
Etymology: New Latin, from an- + -ostraca
: an order of small aquatic crustaceans (subclass Branchiopoda) lacking a carapace, having stalked eyes and 11 to 19 pairs of thoracic appendages, and including Artemia and similar freshwater forms
• an·os·tra·can -kən adjective or noun