Source : Webster's Revised Unabridged Dictionary (1913)

Sequence \Se"quence\ (s[=e]"kwens), n. [F. s['e]quence, L.
   sequentia, fr. sequens. See {Sequent}.]
   1. The state of being sequent; succession; order of
      following; arrangement.

            How art thou a king But by fair sequence and
            succession?                           --Shak.

            Sequence and series of the seasons of the year.
                                                  --Bacon.

   2. That which follows or succeeds as an effect; sequel;
      consequence; result.

            The inevitable sequences of sin and punishment.
                                                  --Bp. Hall.

   3. (Philos.) Simple succession, or the coming after in time,
      without asserting or implying causative energy; as, the
      reactions of chemical agents may be conceived as merely
      invariable sequences.

   4. (Mus.)
      (a) Any succession of chords (or harmonic phrase) rising
          or falling by the regular diatonic degrees in the same
          scale; a succession of similar harmonic steps.
      (b) A melodic phrase or passage successively repeated one
          tone higher; a rosalia.

   5. (R.C.Ch.) A hymn introduced in the Mass on certain
      festival days, and recited or sung immediately before the
      gospel, and after the gradual or introit, whence the name.
      --Bp. Fitzpatrick.

            Originally the sequence was called a Prose, because
            its early form was rhythmical prose.  --Shipley.

   6. (Card Playing)
      (a) (Whist) Three or more cards of the same suit in
          immediately consecutive order of value; as, ace, king,
          and queen; or knave, ten, nine, and eight.
      (b) (Poker) All five cards, of a hand, in consecutive
          order as to value, but not necessarily of the same
          suit; when of one suit, it is called a {sequence
          flush}.

Source : WordNet®

sequence
     n 1: serial arrangement in which things follow in logical order
          or a recurrent pattern; "the sequence of names was
          alphabetical"; "he invented a technique to determine the
          sequence of base pairs in DNA"
     2: a following of one thing after another in time; "the doctor
        saw a sequence of patients" [syn: {chronological sequence},
         {succession}, {successiveness}, {chronological succession}]
     3: film consisting of a succession of related shots that
        develop a given subject in a movie [syn: {episode}]
     4: the action of following in order; "he played the trumps in
        sequence" [syn: {succession}]
     5: several repetitions of a melodic phrase in different keys

sequence
     v 1: arrange in a sequence
     2: determine the order of constituents in; "They sequenced the
        human genome"