Any device that activates or deactivates the components of a machine or system according to a preplanned sequence (as in a washing machine, or central heating system).

plural of sequencer

A set of things next to each other in a set order; a series / (uncountable) The state of being sequent or following; order of succession.

(transitive) to arrange in an order / (transitive, biochemistry) to determine the order of things, especially of amino acids in a protein, or of bases in a nucleic acid

present participle of sequence

Arrangement in a sequence.

plural of sequence

Third-person singular simple present indicative form of sequence

simple past tense and past participle of sequence

(genetics) Whose sequence (of bases or genes) has been determined