The Collaborative International Dictionary of English v.0.48:

Remain \Re*main"\ (r?-m?n"), v. i. [imp. & p. p. Remained
   (-m?nd"); p. pr. & vb. n. Remaining.] [OF. remaindre,
   remanoir, L. remanere; pref. re- re- + manere to stay,
   remain. See Mansion, and cf. Remainder, Remnant.]
   [1913 Webster]
   1. To stay behind while others withdraw; to be left after
      others have been removed or destroyed; to be left after a
      number or quantity has been subtracted or cut off; to be
      left as not included or comprised.
      [1913 Webster]

            Gather up the fragments that remain.  --John vi. 12.
      [1913 Webster]

            Of whom the greater part remain unto this present,
            but some are fallen asleep.           --1 Cor. xv.
                                                  6.
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            That . . . remains to be proved.      --Locke.
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   2. To continue unchanged in place, form, or condition, or
      undiminished in quantity; to abide; to stay; to endure; to
      last.
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            Remain a widow at thy father's house. --Gen.
                                                  xxxviii. 11.
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            Childless thou art; childless remain. --Milton.
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   Syn: To continue; stay; wait; tarry; rest; sojourn; dwell;
        abide; last; endure.
        [1913 Webster]

WordNet (r) 3.0 (2006):

remaining
    adj 1: not used up; "leftover meatloaf"; "she had a little money
           left over so she went to a movie"; "some odd dollars
           left"; "saved the remaining sandwiches for supper";
           "unexpended provisions" [syn: leftover, left over(p),
           left(p), odd, remaining, unexpended]