n A length of time.
n A length of time in history seen as a single coherent entity; an epoch, era.
n (now chiefly Canada, US, Philippines) The punctuation mark “.” (indicating the ending of a sentence or marking an abbreviation).
n (figurative) A decisive end to something; a stop.
n The length of time during which the same characteristics of a periodic phenomenon recur, such as the repetition of a wave or the rotation of a planet.
n (euphemistic) Female menstruation; an episode of this.
n The set of symptoms associated with menstruation, even if not accompanied by menstruation; an episode of these symptoms.
n A section of an artist's, writer's (etc.) career distinguished by a given quality, preoccupation etc.
n Each of the divisions into which a school day is split, allocated to a given subject or activity.
n (sports, chiefly ice hockey) Each of the intervals, typically three, of which a game is divided.
n (sports, chiefly ice hockey) One or more additional intervals to decide a tied game, an overtime period.
n (obsolete, medicine) The length of time for a disease to run its course.
n An end or conclusion; the final point of a process etc.
n (rhetoric) A complete sentence, especially one expressing a single thought or making a balanced, rhythmic whole.
n (obsolete) A specific moment during a given process; a point, a stage.
n (chemistry) A row in the periodic table of the elements.
n (geology) A geochronologic unit of millions to tens of millions of years; a subdivision of an era, and subdivided into epochs.
n (genetics) A Drosophila gene, the gene product of which is involved in regulation of the circadian rhythm.
n 20 November 2009, “Gene Dmel\per”, in FlyBase (Gene Report (database record)), The FlyBase Consortium, retrieved 2009-12-07:
n (music) Two phrases (an antecedent and a consequent phrase).
n (mathematics) The length of an interval over which a periodic function, periodic sequence or repeating decimal repeats; often the least such length.
n (archaic) End point, conclusion.
adj Designating anything from a given historical era.
adj Evoking, or appropriate for, a particular historical period, especially through the use of elaborate costumes and scenery.
v (obsolete, intransitive) To come to a period; to conclude.
v (obsolete, transitive, rare) To put an end to.