The Collaborative International Dictionary of English v.0.48:

Celibate \Cel"i*bate\, n. [L. aelibatus, fr. caelebs unmarried,
   single.]
   1. Celibate state; celibacy. [Obs.]
      [1913 Webster]

            He . . . preferreth holy celibate before the estate
            of marriage.                          --Jer. Taylor.
      [1913 Webster]

   2. One who is unmarried, esp. a bachelor, or one bound by
      vows not to marry.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Celibate \Cel"i*bate\, a.
   Unmarried; single; as, a celibate state.
   [1913 Webster]

WordNet (r) 3.0 (2006):

celibate
    adj 1: abstaining from sexual intercourse; "celibate priests"
           [syn: celibate, continent]
    n 1: an unmarried person who has taken a religious vow of
         chastity