The Collaborative International Dictionary of English v.0.48:

Virgin \Vir"gin\, a.
   1. Being a virgin; chaste; of or pertaining to a virgin;
      becoming a virgin; maidenly; modest; indicating modesty;
      as, a virgin blush. "Virgin shame." --Cowley.
      [1913 Webster]

            Innocence and virgin modesty . . .
            That would be wooed, and unsought be won. --Milton.
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   2. Pure; undefiled; unmixed; fresh; new; as, virgin soil;
      virgin gold. "Virgin Dutch." --G. W. Cable.
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            The white cold virgin snow upon my heart. --Shak.
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            A few ounces of mutton, with a little virgin oil.
                                                  --Landor.
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   3. Not yet pregnant; impregnant. --Milton.
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The Collaborative International Dictionary of English v.0.48:

Virgin \Vir"gin\, n. [L. virgo, -inis: cf. OF. virgine, virgene,
   virge, vierge, F. vierge.]
   1. A woman who has had no carnal knowledge of man; a maid.
      [1913 Webster]

   2. A person of the male sex who has not known sexual
      indulgence. [Archaic] --Wyclif.
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            These are they which were not defiled with women;
            for they are virgins.                 --Rev. xiv. 4.
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            He his flesh hath overcome;
            He was a virgin, as he said.          --Gower.
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   3. (Astron.) See Virgo.
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   4. (Zool.) Any one of several species of gossamer-winged
      butterflies of the family Lycaenidae.
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   5. (Zool.) A female insect producing eggs from which young
      are hatched, though there has been no fecundation by a
      male; a parthenogenetic insect.
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   The Virgin, or The Blessed Virgin, the Virgin Mary, the
      Mother of Jesus Christ.

   Virgin's bower (Bot.), a name given to several climbing
      plants of the genus Clematis, as Clematis Vitalba of
      Europe, and Clematis Virginiana of North America.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Virgin \Vir"gin\, v. i.
   To act the virgin; to be or keep chaste; -- followed by it.
   See It, 5. [Obs.] "My true lip hath virgined it e'er since
   [that kiss]." --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

virgin
    adj 1: being used or worked for the first time; "virgin wool"
    2: 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 person who has never had sex
    2: (astrology) a person who is born while the sun is in Virgo
       [syn: Virgo, Virgin]
    3: the sixth sign of the zodiac; the sun is in this sign from
       about August 23 to September 22 [syn: Virgo, Virgo the
       Virgin, Virgin]

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

virgin

   Unused; pristine; in a known initial state.  "Let's bring up a
   virgin system and see if it crashes again."  (Especially
   useful after contracting a virus through SEX.)  Also, by
   extension, buffers and the like within a program that have not
   yet been used.

   [Jargon File]

   (1994-11-30)


The Jargon File (version 4.4.7, 29 Dec 2003):

virgin
 adj.

    Unused; pristine; in a known initial state. “Let's bring up a virgin system
    and see if it crashes again.” (Esp.: useful after contracting a virus
    through SEX.) Also, by extension, buffers and the like within a program
    that have not yet been used.