period : Idioms & Phrases

Al`a*ba"ma pe"ri*od

Definitions

1. (Geol.) A period in the American eocene, the lowest in the tertiary age except the lignitic.

Webster 1913

• noun the historic period from about 1600 until 1750 when the baroque style of art, architecture, and music flourished in Europe
  Baroque; Baroque era.
  

WordNet

• a period of seventy-six years, proposed by Calippus, as an improvement on the Metonic cycle, since the 6940 days of the Metonic cycle exceeded 19 years by about a quarter of a day, and exceeded 235 lunations by something more.

Webster 1913

• noun from 544 million to about 500 million years ago; marine invertebrates
  Cambrian.
  

WordNet

• (Geol.), A subdivision of the American Lower Silurian system embracing the calciferous, Quebec, and Chazy epochs. This period immediately follows the primordial or Cambrian period, and is by many geologists regarded as the beginning of the Silurian age, See the Diagram, under Geology.

Webster 1913

• noun from 345 million to 280 million years ago
  Carboniferous.
  

WordNet

Cats"kill pe`ri*od

Definitions

1. (Geol.) The closing subdivision of the Devonian age in America. The rocks of this period are well developed in the Catskill mountains, and extend south and west under the Carboniferous formation. See the Diagram under Geology.

Webster 1913

• . (Geol.) See Cretaceous period, under Cretaceous.

Webster 1913

Cham*plain" pe"ri*od

Definitions

1. (Geol.) A subdivision of the Quaternary age immediately following the Glacial period; -- so named from beds near Lake Champlain. ✍ The earlier deposits of this period are diluvial in character, as if formed in connection with floods attending the melting of the glaciers, while the later deposits are of finer material in more quiet waters, as the alluvium.

Webster 1913

Che*mung" pe"ri*od

Definitions

1. (Geol.) A subdivision in the upper part of the Devonian system in America, so named from the Chemung River, along which the rocks are well developed. It includes the Portage and Chemung groups or epochs. See the Diagram under Geology.

Webster 1913

• noun a regularly scheduled session as part of a course of study
  course session; recitation.
  

WordNet

• noun from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
  Cretaceous.
  

WordNet

• (Geol.), the time in the latter part of the Mesozoic age during which the Cretaceous formation was deposited.

Webster 1913

• noun from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
  Age of Fishes; Devonian.
  

WordNet

• a period of 532 years, depending on the cycle of the sun, or 28 years, and the cycle of the moon, or 19 years; sometimes called the Greek paschal cycle, or Victorian period.

Webster 1913

• noun the time period during which you are at work
  work shift; shift.
  

WordNet

• noun the time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation)
  fertile phase.
  

WordNet

• noun the final division into which the play of a game is divided
  

WordNet

• noun the first division into which the play of a game is divided
  

WordNet

• noun a unit of geological time during which a system of rocks formed
  period.
  
  • ganoid fishes swarmed during the earlier geological periods

WordNet

• noun the period during which an embryo develops (about 266 days in humans)
  gestation.
  

WordNet

• (Geol.), a period during which the climate of the modern temperate regions was polar, and ice covered large portions of the northern hemisphere to the mountain tops.

Webster 1913

• noun any period of time during which glaciers covered a large part of the earth's surface
  glacial epoch; ice age.
  
  • the most recent ice age was during the Pleistocene

WordNet

Ham"il*ton pe"ri*od

Definitions

1. (Geol.) A subdivision of the Devonian system of America; -- so named from Hamilton, Madison Co., New York. It includes the Marcellus, Hamilton, and Genesee epochs or groups. See the Chart of Geology.

Webster 1913

• noun an era of history having some distinctive feature
  age.
  
  • we live in a litigious age

WordNet

• noun the period between infection and the appearance of symptoms of the disease
  

WordNet

• a chronological period of 7,980 years, combining the solar, lunar, and indiction cycles (28 x 19 x 15 = 7,980), being reckoned from the year 4713 B. C., when the first years of these several cycles would coincide, so that if any year of the period be divided by 28, 19, or 15, the remainder will be the year of the corresponding cycle. The Julian period was proposed by Scaliger, to remove or avoid ambiguities in chronological dates, and was so named because composed of Julian years.

Webster 1913

• noun from 190 million to 135 million years ago; dinosaurs; conifers
  Jurassic.
  

WordNet

• noun (psychoanalysis) the fourth period (from about age 5 or 6 until puberty) during which sexual interests are supposed to be sublimated into other activities
  latency phase; latency stage.
  

WordNet

• noun the time that elapses between a stimulus and the response to it
  latency; reaction time; response time.
  
• noun the time that elapses before the presence of a disease is manifested by symptoms
  

WordNet

• . (a) (Med.) The regular time in which a disease is supposed to be existing without manifesting itself . (b) (Physiol.) One of the phases in a simple muscular contraction, in which invisible preparatory changes are taking place in the nerve and muscle . (c) (Biol.) One of those periods or resting stages in the development of the ovum, in which development is arrested prior to renewed activity.

Webster 1913

• (Geol.), the lower of the two divisions of the Archæan age; called also the Laurentian.

Webster 1913

• noun from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
  Lower Carboniferous; Mississippian; Lower Carboniferous period.
  

WordNet

• noun there are usually two high and two low tides each day
  tide.
  

WordNet

• noun the customary or habitual hour for eating lunch
  lunchtime.
  
  • he observed a regular lunchtime

WordNet

• noun from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
  Lower Carboniferous; Mississippian; Lower Carboniferous period.
  

WordNet

• noun the first 28 days of life
  

WordNet

Ni*ag"a*ra pe"ri*od

Definitions

1. (Geol.) A subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology.

Webster 1913

• noun the time it takes to complete one full orbit around a celestial body
  
  • the orbit period depends on the altitude of the satellite

WordNet

• noun from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds
  Ordovician.
  

WordNet

• a subdivision of the American Paleozoic system intermediate or translational in character between the Silurian and Devonian ages. See Chart of Geology.

Webster 1913

• noun a period of overtime play to resolve a tie; e.g. basketball
  

WordNet

• noun from 310 million to 280 million years ago; warm climate; swampy land
  Pennsylvanian period; Upper Carboniferous; Pennsylvanian.
  

WordNet

• noun (in games or plays or other performances) the time during which play proceeds
  play; period of play.
  
  • rain stopped play in the 4th inning

WordNet

• noun an amount of time
  period of time; period.
  
  • a time period of 30 years
  • hastened the period of time of his recovery
  • Picasso's blue period

WordNet

• noun any work of art whose special value lies in its evocation of a historical period
  

WordNet

• noun from 280 million to 230 million years ago; reptiles
  Permian.
  

WordNet

• noun (in games or plays or other performances) the time during which play proceeds
  play; period of play.
  
  • rain stopped play in the 4th inning

WordNet

• noun the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
  Precambrian eon; Precambrian aeon; Precambrian.
  

WordNet

• noun last 2 million years
  Age of Man; Quaternary.
  

WordNet

• noun the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877
  Reconstruction.
  

WordNet

• noun (neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response
  

WordNet

• (Geol.), a name sometimes given to a part of the Paleolithic era when the reindeer was common over Central Europe.

Webster 1913

• noun a pause for relaxation
  respite; rest; relief.
  
  • people actually accomplish more when they take time for short rests

WordNet

• noun that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)
  

WordNet

Sa*li"na pe"ri*od

Etymology

So called from Salina, a town in New York.

Definitions

1. (Geol.) The period in which the American Upper Silurian system, containing the brine-producing rocks of central New York, was formed. See the Chart of Geology.

Webster 1913

• noun the second division into which the play of a game is divided
  

WordNet

• noun from 425 million to 405 million years ago; first air-breathing animals
  Silurian.
  

WordNet

• a translation of G. sturm und drang periode, a designation given to the literary agitation and revolutionary development in Germany under the lead of Goethe and Schiller in the latter part of the 18th century.

Webster 1913

• noun from 63 million to 2 million years ago
  Tertiary.
  

WordNet

• . (Geol.) (a) The first period of the age of mammals, or of the Cenozoic era. (b) The rock formation of that period; called also Tertiary formation. See the Chart of Geology.

Webster 1913

• noun a period of time during which someone or something is tested
  test period.
  

WordNet

• the present or current time, as distinguished from all other times.

Webster 1913

• noun an amount of time
  period of time; period.
  
  • a time period of 30 years
  • hastened the period of time of his recovery
  • Picasso's blue period

WordNet

Tren"ton pe"ri*od

Definitions

1. (Geol.) A subdivision in the lower Silurian system of America; -- so named from Trenton Falls, in New York. The rocks are mostly limestones, and the period is divided into the Trenton, Utica, and Cincinnati epochs. See the Chart of Geology.

Webster 1913

• noun a period of time during which someone or something is tested
  test period.
  

WordNet

• noun from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity
  Triassic.
  

WordNet

• noun time for Earth to make a complete rotation on its axis
  twenty-four hours; mean solar day; solar day; day; 24-hour interval.
  
  • two days later they left
  • they put on two performances every day
  • there are 30,000 passengers per day

WordNet

• noun from 310 million to 280 million years ago; warm climate; swampy land
  Pennsylvanian period; Upper Carboniferous; Pennsylvanian.
  

WordNet

• . See Dionysian period, under Dyonysian.

Webster 1913