sequence (sequences plural )
1 n-count A sequence of events or things is a number of events or things that come one after another in a particular order.
oft N of n
(=series)
...the sequence of events which led to the murder., ...a dazzling sequence of novels by John Updike.
2 n-count A particular sequence is a particular order in which things happen or are arranged.
...the colour sequence yellow, orange, purple, blue, green and white..., The chronological sequence gives the book an element of structure.
3 n-count A film sequence is a part of a film that shows a single set of actions.
The best sequence in the film occurs when Roth stops at a house he used to live in.
4 n-count A gene sequence or a DNA sequence is the order in which the elements making up a particular gene are combined.
supp N
The project is nothing less than mapping every gene sequence in the human body., ...the complete DNA sequence of the human genome.