a device, in a watch, in which the current time is announced by means of a combination of sounds that represent the hour, quarter hour, and minute; usually activated by a button

(chemistry) A specific arrangement of atoms that repeats within a macromolecule / (genetics) A specific sequence of bases that repeats within a nucleic acid (or of amino acids within a protein)

plural of repeat offender

A person who has previously offended against the law, often someone who may be deemed incorrigible. / One who performs a specific (often undesirable) action on multiple occasions.

To say again what one has already said, usually several times.

(mathematics) A decimal representation of a real number that, at some point, becomes periodic (and repeats some sequence of digits infinitely)

repeated often or frequently

plural of minute repeater

plural of repeat unit

plural of repeating decimal