-nēˈäˌtē, -ˈāˌ- noun plural
Usage: capitalized
Etymology: New Latin, from archegonium + -atae (from feminine plural of Latin -atus -ate)
in some classifications : a primary division of the plant kingdom coextensive with the subkingdom Embryophyta and containing all the plants that produce archegonia (as the mosses, ferns, horsetails, and club mosses)