The Collaborative International Dictionary of English v.0.48:

Ariel \A"ri*el\, n., or Ariel gazelle \A"ri*el ga*zelle"\ [Ar.
   aryil, ayyil, stag.] (Zool.)
   (a) A variety of the gazelle (Antilope dorcas, or Gazella,
       dorcas), found in Arabia and adjacent countries.
   (b) A squirrel-like Australian marsupial, a species of
       Petaurus.
   (c) A beautiful Brazilian toucan Ramphastos ariel).
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ariel \A"ri*el\, n. [Heb. ari["e]l, perh. confused with E.
   a["e]rial.]
   In the Cabala, a water spirit; in later folklore, a light and
   graceful spirit of the air.
   [Webster 1913 Suppl.]

   Note: In Zoology, ariel is used adjectively of certain birds
         noted for their graceful flight; as, the ariel toucan;
         the ariel petrel.
         [Webster 1913 Suppl.]

The Free On-line Dictionary of Computing (19 January 2023):

Ariel

    An array-oriented language for the CDC 6400.

   ["Ariel Reference Manual", P. Devel, TR 22, CC UC Berkeley,
   Apr 1968].

   ["A New Survey of the Ariel Programming Language", P. Deuel,
   TR 4, Ariel Consortium, UC Berkeley, June 1972].

   [Deuel or Devel?]

   (1995-12-29)