Hypertext Webster Gateway: "articulus"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Articulus \Ar*tic"u*lus\n.; pl. {Articuli}. [L. See {Article}.]
(Zo["o]l.)
A joint of the cirri of the Crinoidea; a joint or segment of
an arthropod appendage.
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