1. a period of economic prosperity. 2. artifacts of the pre-Columbian period. 3. Picasso's early career is divided into his blue period and rose period. 4. A unit of time, longer than an epoch and shorter than an era. 5. Any of various arbitrary units of time, especially: 6. Any of the divisions of the academic day. 7. A division of the playing time of a game. 8. The time interval between two successive occurrences of a recurrent event or phases of an event; a cycle. 9. An instance or occurrence of menstruation. 10. A point or portion of time at which something is ended; a completion or conclusion. 11. The full pause at the end of a spoken sentence. 12. A punctuation mark ( . ) indicating a full stop, placed at the end of declarative sentences and other statements thought to be complete, and after many abbreviations. 13. A sentence of several carefully balanced clauses in formal writing. 14. A metrical unit of quantitative verse consisting of two or more cola. 15. An analogous unit or division of classical Greek or Latin prose. 16. A group of two or more phrases within a composition, made up of 8 or 16 measures and terminating with a cadence. 17. The least interval in the range of the independent variable of a periodic function of a real variable in which all possible values of the dependent variable are assumed. 18. A group of digits separated by commas in a written number. 19. andequals; 0.142857142857 . . . has a six-digit period. 20. A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table. 21. a period piece; period furniture.
