ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷sədə noun plural
Usage: capitalized
Etymology: New Latin, from ichthy- + Greek opsis appearance + New Latin -ida — more at optic
in some especially former classifications : a group of vertebrates comprising the agnathous vertebrates, fishes, and amphibians — compare mammalia , sauropsida
• ich·thy·op·si·dan | ̷ ̷ ̷ ̷| ̷ ̷sədən, -d ə n adjective or noun