The Collaborative International Dictionary of English v.0.48:

Articulately \Ar*tic"u*late*ly\, adv.
   1. After the manner, or in the form, of a joint.
      [1913 Webster]

   2. Article by article; in distinct particulars; in detail;
      definitely. --Paley.
      [1913 Webster]

            I had articulately set down in writing our points.
                                                  --Fuller.
      [1913 Webster]

   3. With distinct utterance of the separate sounds.
      [1913 Webster]

WordNet (r) 3.0 (2006):

articulately
    adv 1: with eloquence; "he expressed his ideas eloquently" [syn:
           eloquently, articulately] [ant: inarticulately,
           ineloquently]
    2: in an articulate manner; "he argued articulately for his
       plan" [syn: articulately, eloquently] [ant:
       inarticulately]