| research | systematic investigation to establish facts |
| operations research | research designed to determine most efficient way to do something |
| biological research | scientific research conducted by biologists |
| stemell research | research on stem cells and their use in medicine |
| embryonic stemell research | biological research on stem cells derived from embryos and on their use in medicine |
marketing research
market research | research that gathers and analyzes information about the moving of good or services from producer to consumer |
| product research | marketing research that yields information about desired characteristics of the product or service |
| consumer research | marketing research that yields information about the motives and needs of different classes of consumers |
scientific research
research project | research into questions posed by scientific theories and hypotheses |
course session
class period
recitation | a regularly scheduled session as part of a course of study |
Air Force Research Laboratory
AFRL | a United States Air Force defense laboratory responsible for discovering and developing and integrating fighting technologies for aerospace forces |
Army High Performance Computing Research Center
AHPCRC | a United States defense laboratory to conduct research in high-performance computing for defense technology applications, a partnership of government and university and industry |
| auxiliary research submarine | a submarine for research purposes |
lab
laboratory
research lab
research laboratory
science lab
science laboratory | a workplace for the conduct of scientific research |
Naval Research Laboratory
NRL | the United States Navy's defense laboratory that conducts basic and applied research for the Navy in a variety of scientific and technical disciplines |
| period piece | any work of art whose special value lies in its evocation of a historical period |
research center
research facility | a center where research is done |
test rocket
research rocket
test instrument vehicle | a rocket fired for test purposes |
inquiry enquiry
research | a search for knowledge, their pottery deserves more research than it has received |
| empirical research | an empirical search for knowledge |
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 |
Defense Advanced Research Projects Agency
DARPA | the central research and development organization for the United States Department of Defense, responsible for developing new surveillance technologies since
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Bureau of Intelligence and Research
INR | an agency that is the primary source in the State Department for interpretive analyses of global developments and focal point for policy issues and activities of the Intelligence Community |
| research colloquium | a colloquium at which the results of (scientific) research are reported |
Advanced Research and Development Activity
ARDA | an agency of the Intelligence Community that conducts advanced research and development related to information technology |
| research staff | a group of associated research workers in a university or library or laboratory |
Casualty Care Research Center
CCRC | an agency in the Department of Defense that is a national center for research on all aspects of injury control and casualty care |
research director
director of research | a supervisor in a research center |
research worker
researcher
investigator | a scientist who devotes himself to doing research |
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 |