|āˌkȯrˈdäd.ə, -ād.ə noun plural
Usage: capitalized
Etymology: New Latin, from a- (II) + Chordata
: an arbitrary subdivision of the animal kingdom including all animals lacking a notochord — opposed to Chordata
• achor·date (ˈ)ā|kȯrdə̇t, (ˈ)āˈkȯrˌdāt adjective or noun