What is "inarticulata"

Inarticulate \In`ar*tic"u*late\, a. [L. inarticulatus; pref. in- not + articulatus articulate.]

1. Not uttered with articulation or intelligible distinctness, as speech or words.

   Music which is inarticulate poesy.
   --Dryden.

2. (Zo["o]l.)

   1. Not jointed or articulated; having no distinct body segments; as, an inarticulate worm.

   2. Without a hinge; -- said of an order ( Inarticulata or Ecardines) of brachiopods.

3. Incapable of articulating. [R.]

   The poor earl, who is inarticulate with palsy.
   --Walpole.

4. Incapable of expressing one's ideas or feelings clearly.

Inarticulata was historically defined as one of the two classes of the phylum Brachiopoda and referred to those having no hinge. The other class was Articulata, meaning articulated – having a hinge between the dorsal and ventral valves. These classifications have now been superseded, see brachiopod classification.