D defs.my
Entry 2 senses Webster, 1913

Anarthrous

· An·ar·throus · IPA /æˈnɑɹθɹəs/
01 a. Used without the article; as, an anarthrous substantive.
  1. 1.
    Used without the article; as, an anarthrous substantive.(Gr. Gram.)
  2. 2.
    Without joints, or having the joints indistinct, as some insects.(Zool.)