əˌpisthəˌgōnēˈäd.ə, -ād.ə noun plural
Usage: capitalized
Etymology: New Latin, from opisth- + Greek gonē genitalia (from Greek gignesthai to be born) + New Latin -ata — more at kin
: a primary division of Arthropoda comprising forms with single posterior genital aperture and including the insects and centipedes or sometimes only the latter