ˌ ̷ ̷ ̷ ̷ˈdäksəˌdēz noun
Usage: capitalized
Etymology: New Latin, from Latin paradoxum paradox + -ides
: a genus of trilobites of the Middle Cambrian having from 17 to 20 free segments, a large cephalic shield, and a very small pygidium and sometimes reaching a length of about two feet