n. plAppendiculata(Zoöl) An order of annelids; the Polychæta.
Century Dictionary and Cyclopedia
appendiculataA name given by E. R. Lankester to a phylum or prime group of the animal kingdom, including those forms which have lateral locomotive appendages and usually a segmented body. It is a loose and inexact synonym of Arthropoda, together with Rotifera and Chætopoda. See Arthropoda.
Webster's Revised Unabridged Dictionary
SUB-PHYLUM ARTHROPODA (of the Phylum Appendiculata).
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various