D defs.my
Entry 1 sense Webster, 1913

Articulus

· Ar·tic·u·lus · IPA
01 n. A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.
pl. Articuli
  1. 1.
    A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.(Zool.)