ˌ ̷ ̷ ̷ ̷ˈȯrnəˌthēz, -ˌȯrˈnī(ˌ)thēz noun plural
Usage: capitalized
Etymology: New Latin, from plural of Ichthyornis
in some classifications : a superorder of extinct birds coextensive with the order Ichthyornithiformes
ˌ ̷ ̷ ̷ ̷ˈȯrnəˌthēz, -ˌȯrˈnī(ˌ)thēz noun plural
Usage: capitalized
Etymology: New Latin, from plural of Ichthyornis
in some classifications : a superorder of extinct birds coextensive with the order Ichthyornithiformes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012