-psədə noun plural
Usage: capitalized
Etymology: New Latin, from saur- + Greek opsis appearance + New Latin -ida — more at optic
in some especially former classifications : a group of vertebrates comprising the reptiles and birds — compare ichthyopsida , mammalia
• sau·rop·si·dan (ˈ) ̷ ̷| ̷ ̷sədən adjective or noun
• sau·rop·sid·i·an | ̷ ̷ˌ ̷ ̷|sidēən adjective