The Collaborative International Dictionary of English v.0.48:

Cupid \Cu"pid\ (k?"p?d), n. [L.Cupido, fr. cupido desire, desire
   of love, fr. cupidus. See Cupidity.] (Rom. Myth.)
   The god of love, son of Venus; usually represented as a
   naked, winged boy with bow and arrow.
   [1913 Webster]

         Pretty dimpled boys, like smiling cupids. --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Cupid
    n 1: (Roman mythology) god of love; counterpart of Greek Eros
         [syn: Cupid, Amor]
    2: a symbol for love in the form of a cherubic naked boy with
       wings and a bow and arrow

Moby Thesaurus II by Grady Ward, 1.0:

74 Moby Thesaurus words for "Cupid":
   Agdistis, Amor, Aphrodite, Apollo, Apollon, Ares, Artemis, Astarte,
   Ate, Athena, Bacchus, Ceres, Cora, Cronus, Cybele, Demeter,
   Despoina, Diana, Dionysus, Dis, Eros, Freya, Gaea, Gaia, Ge,
   Great Mother, Hades, Helios, Hephaestus, Hera, Here, Hermes,
   Hestia, Hymen, Hyperion, Jove, Juno, Jupiter, Jupiter Fidius,
   Jupiter Fulgur, Jupiter Optimus Maximus, Jupiter Pluvius,
   Jupiter Tonans, Kama, Kore, Kronos, Love, Magna Mater, Mars,
   Mercury, Minerva, Mithras, Momus, Neptune, Nike, Olympians,
   Olympic gods, Ops, Orcus, Persephassa, Persephone, Phoebus,
   Phoebus Apollo, Pluto, Poseidon, Proserpina, Proserpine, Rhea,
   Saturn, Tellus, Venus, Vesta, Vulcan, Zeus



The Free On-line Dictionary of Computing (30 December 2018):

CUPID

   A graphic query language.

   ["CUPID: A Graphic Oriented Facility for Support of
   Nonprogrammer Interactions with a Database", N. McDonald, PhD
   Thesis, CS Dept, UC Berkeley 1975].


The Devil's Dictionary (1881-1906):

CUPID, n.  The so-called god of love.  This bastard creation of a
barbarous fancy was no doubt inflicted upon mythology for the sins of
its deities.  Of all unbeautiful and inappropriate conceptions this is
the most reasonless and offensive.  The notion of symbolizing sexual
love by a semisexless babe, and comparing the pains of passion to the
wounds of an arrow -- of introducing this pudgy homunculus into art
grossly to materialize the subtle spirit and suggestion of the work --
this is eminently worthy of the age that, giving it birth, laid it on
the doorstep of prosperity.