noun (plural pygidia) Etymology: New Latin, from Greek pygidion, diminutive of pygē rump Date: circa 1849 a caudal structure or the terminal body region of various invertebrates, pygidial adjective
PYGIDIUM
Meaning of PYGIDIUM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012