• Webster's Revised Unabridged Dictionary
    • n. pl Anarthropoda (Zoöl) One of the divisions of Articulata in which there are no jointed legs, as the annelids; -- opposed to Arthropoda.
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Century Dictionary and Cyclopedia
    • anarthropoda In zoology, in some systems of classification, one of two prime divisions (Arthropoda being the other) of the Annulosa or ringed animals, namely, those which have no articulated appendages or jointed limbs, such as the Annelida and the Gephyrea. It is conterminous with these two classes, together with the Chætognatha (Sagitta). The term is not now current, Arthropoda being ranked as a subkingdom, including crustaoeans, myriapods, arachnids, and insects, and all anarthropodous ringed animals being contrasted with them under the name Vermes.
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Webster's Revised Unabridged Dictionary
NL., from Gr. without joints + -poda,. See Anarthrous