The Collaborative International Dictionary of English v.0.48:

Virginal \Vir"gin*al\, a. [L. virginalis: cf. F. virginal.]
   Of or pertaining to a virgin; becoming a virgin; maidenly.
   "Chastity and honor virginal." --Spenser.
   [1913 Webster]

   Virginal generation (Biol.), parthenogenesis.

   Virginal membrane (Anat.), the hymen.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Virginal \Vir"gin*al\, n. [Cf. F. virginale; -- probably so
   called from being used by young girls, or virgins.] (Mus.)
   An instrument somewhat resembling the spinet, but having a
   rectangular form, like the small piano. It had strings and
   keys, but only one wire to a note. The instrument was used in
   the sixteenth century, but is now wholly obsolete. It was
   sometimes called a pair of virginals.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Virginal \Vir"gin*al\, v. i.
   To play with the fingers, as if on a virginal; to tap or pat.
   [Obs.] "Still virginaling upon his palm!" --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

virginal
    adj 1: characteristic of a virgin or virginity; "virginal white
           dresses"
    2: untouched or undefiled; "nor is there anything more virginal
       than the shimmer of young foliage"- L.P.Smith
    3: in a state of sexual virginity; "pure and vestal modesty"; "a
       spinster or virgin lady"; "men have decreed that their women
       must be pure and virginal" [syn: pure, vestal, virgin,
       virginal, virtuous]
    n 1: a legless rectangular harpsichord; played (usually by
         women) in the 16th and 17th centuries [syn: virginal,
         pair of virginals]

Moby Thesaurus II by Grady Ward, 1.0:

75 Moby Thesaurus words for "virginal":
   Platonic, abstinent, artless, bachelorlike, budding, callow,
   celibate, continent, dewy, ever-new, evergreen, firsthand,
   fledgling, fresh, green, growing, husbandless, immature, impubic,
   in the raw, inartificial, inexperienced, ingenuous, innocent,
   intact, juicy, maiden, maidenly, minor, naive, native, natural,
   neoteric, nestling, new, new-fledged, old-maidish, original,
   pristine, raw, ripening, sappy, sempervirent, single, sole,
   spinsterish, spinsterlike, spinsterly, spouseless, tender, unadult,
   unbeaten, underage, undeveloped, unfledged, unformed, unhandled,
   unlicked, unmarried, unmellowed, unripe, unseasoned, unspoiled,
   unsullied, untapped, untouched, untried, untrodden, unused, unwed,
   unwedded, vernal, vestal, virgin, young