I. ˌ ̷ ̷ ̷ ̷ˈäd.ə, -ād.ə noun plural
Usage: capitalized
Etymology: New Latin, from neuter plural of tracheatus tracheate, from trache- + Latin -atus -ate
in some especially former classifications : a class or other group of Arthropoda comprising all or most of the arthropods with tracheal respiration
II.
Etymology: New Latin
synonym of tracheophyta