course session
class period
recitation | a regularly scheduled session as part of a course of study |
| period piece | any work of art whose special value lies in its evocation of a historical period |
period
point
full stop
stop full point | a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations, in England they call a period a stop |
age group
age bracket
cohort | a group of people having approximately the same age |
| cohort | a band of warriors (originally a unit of a Roman Legion) |
| cohort | a company of companions or supporters |
menstruation
menses
menstruum
catamenia
period
flow | the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause, the women were sickly and subject to excessive menstruation, a woman does not take the gout unless her menses be stopped--Hippocrates, the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females--Aristotle |
time period
period of time
period | an amount of time, a time period ofyears, hastened the period of time of his recovery, Picasso's blue period |
trial period
test period | a period of time during which someone or something is tested |
Quaternary
Quaternary period
Age of Man | last million years |
Tertiary
Tertiary period | from million to million years ago |
Cretaceous
Cretaceous period | from million to million years ago, end of the age of reptiles, appearance of modern insects and flowering plants |
Jurassic
Jurassic period | frommillion to million years ago, dinosaurs, conifers |
Triassic
Triassic period | frommillion tomillion years ago, dinosaurs, marine reptiles, volcanic activity |
Permian
Permian period | frommillion tomillion years ago, reptiles |
Carboniferous
Carboniferous period | from million tomillion years ago |
Pennsylvanian
Pennsylvanian period
Upper Carboniferous
Upper Carboniferous period | frommillion tomillion years ago, warm climate, swampy land |
Mississippian
Missippian period
Lower Carboniferous
Lower Carboniferous period | from million tomillion years ago, increase of land areas, primitive ammonites, winged insects |
Devonian
Devonian period
Age of Fishes | frommillion to million years ago, preponderance of fishes and appearance of amphibians and ammonites |
Silurian
Silurian period | from million tomillion years ago, first air-breathing animals |
Ordovician
Ordovician period | from million to million years ago, conodonts and ostracods and algae and seaweeds |
Cambrian
Cambrian period | from million to about million years ago, marine invertebrates |
Precambrian
Precambrian eon
Precambrian aeon
Precambrian period | the eon following the Hadean time and preceding the Phanerozoic eon, from about , million years ago until million years ago |
| period | the end or completion of something, death put a period to his endeavors, a change soon put a period to my tranquility |
| neonatal period | the first days of life |
latency stage
latency phase
latency period | (psychoanalysis) the fourth period (from about age or until puberty) during which sexual interests are supposed to be sublimated into other activities |
day
twenty-four hours
twenty-four hour period
-hour interval
solar day
mean solar day | time for Earth to make a complete rotation on its axis, two days later they left, they put on two performances every day, there are , passengers per day |
lunchtime
lunch period | the customary or habitual hour for eating lunch, he observed a regular lunchtime |
gestation
gestation period | the period during which an embryo develops (about days in humans) |
| refractory period | (neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response |
| overtime period | a period of overtime play to resolve a tie, e.g. basketball |
| period geological period | a unit of geological time during which a system of rocks formed, ganoid fishes swarmed during the earlier geological periods |
historic period
age | an era of history having some distinctive feature, we live in a litigious age |
ice age
glacial period
glacial epoch | any period of time during which glaciers covered a large part of the earth's surface, the most recent ice age was during the Pleistocene |
playing period
period of play
play | (in games or plays or other performances) the time during which play proceeds, rain stopped play in the th inning |
| first period | the first division into which the play of a game is divided |
| second period | the second division into which the play of a game is divided |
| final period | the final division into which the play of a game is divided |
| period | (ice hockey) one of three divisions into which play is divided in hockey games |
Baroque
Baroque era
Baroque period | the historic period from about untilwhen the baroque style of art, architecture, and music flourished in Europe |
Reconstruction
Reconstruction Period | the period after the American Civil War when the southern states were reorganized and reintegrated into the Union, - |
| latent period | the time that elapses before the presence of a disease is manifested by symptoms |
reaction time
response time
latency
latent period | the time that elapses between a stimulus and the response to it |
respite
rest
relief
rest period | a pause for relaxation, people actually accomplish more when they take time for short rests |
tide
lunar time period | there are usually two high and two low tides each day |
fertile period
fertile phase | the time in the menstrual cycle when fertilization is most likely to be possible ( days before to days after ovulation) |
| period | the interval taken to complete one cycle of a regularly repeating phenomenon |
| orbit period | the time it takes to complete one full orbit around a celestial body, the orbit period depends on the altitude of the satellite |
shift
work shift
duty period | the time period during which you are at work |
| incubation period | the period between infection and the appearance of symptoms of the disease |