The Collaborative International Dictionary of English v.0.48:

Juno \Ju"no\ (j[=u]"n[-o]), n.; pl. Junos (j[=u]"n[-o]z). [L.]
   [1913 Webster]
   1. (Rom. Myth.) The queen of the Olympian gods, the sister
      and wife of Jupiter, and the goddess who presided over
      marriage. She corresponds to the Greek Hera.
      [1913 Webster]

            Sweeter than the lids of Juno's eyes. --Shak.
      [1913 Webster]

   2. (Astron.) One of the early discovered asteroids.
      [1913 Webster]

   Bird of Juno, the peacock.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Juno
    n 1: (Roman mythology) queen of the Olympian gods who protected
         marriage; wife and sister of Jupiter; counterpart of Greek
         Hera

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

Juno

   A numerical constraint-oriented language for graphics
   applications.  It solves its constraints using
   Newton-Raphson relaxation.  It was inspired partly by
   Metafont.

   ["Juno, a Constraint-Based Graphics System", G. Nelson in
   SIGGRAPH '85 Conf Readings, B.A. Barsky ed, Jul 1985,
   pp. 235-243].

   (1994-11-23)