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Definition of: arthropod
(är′thrə·pod) noun Zool.
Any of a large phylum (Arthropoda) of invertebrate animals characterized by jointed legs, chitinous exoskeletons, and segmented body parts, including insects, spiders, and crabs.
—adjective Of or pertaining to the Arthropoda. [<ARTHRO- + Gk. pous, podos foot]
—ar·throp·o·dous (är·throp′ə·dəs), ar·throp′o·dal adjective
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