Articulus
Pronunciation : Ar*tic"u*lus n.; pl. Articuli.
Etymology : [L. See Article.] (Zo?l.)
Definition : Defn: A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder