Definitions of sequence:

• noun:   film consisting of a succession of related shots that develop a given subject in a movie
• noun:   a following of one thing after another in time

  Example: "The doctor saw a sequence of patients"

• noun:   several repetitions of a melodic phrase in different keys
• noun:   serial arrangement in which things follow in logical order or a recurrent pattern

  Example: "The sequence of names was alphabetical"

• noun:   the action of following in order

  Example: "He played the trumps in sequence"

• verb:   arrange in a sequence
• verb:   determine the order of constituents in

  Example: "They sequenced the human genome"