Period

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Period (from Greek περίοδος) or periodic may refer to:

Science[edit]

  • Period, the time taken for one full oscillation; see on frequency
  • Orbital period, the time for one object to complete an orbit around another
  • Period (periodic table), a horizontal row of the periodic table
  • Period, euphemism for menstruation, the periodic discharge of blood and mucosal tissue (the endometrium) from the uterus and vagina
  • Period (gene), a gene in Drosophila involved in regulating circadian rhythm
  • Period (geology), a subdivision of geologic time

Mathematics[edit]

  • Periods (ring), members of the ring of numbers that can be expressed as integrals of algebraic differential forms over algebraically defined domains

Language[edit]

  • Period (punctuation), a punctuation mark indicating the end of a sentence or phrase, specifically, a dot.

Arts[edit]

Academics[edit]

Sports[edit]

See also[edit]