1. [ noun ] an amount of time
Synonyms: period_of_time time_period amount_of_time

"a time period of 30 years" "hastened the period of time of his recovery" "Picasso's blue period"

Related terms: measure fundamental_measure year week time season time phase night century day morning calendar_month season school year decade life life week long_time era weekend fortnight season point term generation year duration life past time_off millennium quarter-century hours incubation_period time_of_life festival youth day watch mid-June flower running_time Indian_summer drought reign half_life enlistment night night prohibition novitiate hour occupation silly_season trimester window silver_age bronze_age Golden_Age lactation lower_paleolithic upper_paleolithic air_alert bimillennium Iron_Age Eolithic_Age Bronze_Age Stone_Age iron_age Mesolithic_Age Paleolithic_Age great_year Neolithic_Age semester shelf_life elapsed_time overtime regulation_time dog_days Olympiad bimester midwinter lustrum calendar_day long_run prehistory dawn quarter half-century field_day work_time lease sleep evening tide multistage mid-January phase_of_the_moon peacetime wartime mid-March indiction honeymoon mid-May mid-April mid-February night rainy_day mid-July clotting_time time_frame uptime mid-September mid-August evening depression puerperium study_hall real_time mid-November test_period usance question_time hospitalization time_limit mid-December middle_paleolithic mid-October run eve real_time travel_time downtime
2. [ noun ] (history) a stage in the history of a culture having a definable place in space and time
Synonyms: historical_period historic_period

"a novel from the Victorian period"

Related terms: time_period
3. [ noun ] the interval taken to complete one cycle of a regularly repeating phenomenon
Related terms: time_interval orbit_period
4. [ noun ] a time of life characterized as a distinct phase

"Picasso's blue period" "it was the happy period of my life"

Related terms: time_interval time_of_life orbit_period
5. [ noun ] (biology,medicine) the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
Synonyms: menses catamenia flow menstruum menstruation

"the women were sickly and subject to excessive menstruation" "a woman does not take the gout unless her menses be stopped"--Hippocrates

Related terms: discharge menorrhagia oligomenorrhea menstruate
6. [ noun ] a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
Synonyms: full_stop stop full_point point

"in England they call a period a stop"

Related terms: punctuation suspension_point point
7. [ noun ] (geology) a unit of geological time during which a system of rocks formed
Synonyms: geological_period

"ganoid fishes swarmed during the earlier geological periods"

Related terms: geological_time Permian Cretaceous Jurassic ice_age Silurian Carboniferous Pennsylvanian Mississippian Devonian Ordovician Triassic Cambrian Tertiary Quaternary era epoch
8. [ noun ] (sport,ice hockey) one of three periods of play in hockey games
Related terms: playing_period
9. [ noun ] the end or completion of something

"death put a period to his endeavors" "a change soon put a period to my tranquility"

Related terms: end
Similar spelling:   Perrotti