| phase space | (physics) an ideal space in which the coordinate dimensions represent the variables that are required to describe a system or substance, a multidimensional phase space |
phase I clinical trial
phase I | a clinical trial on a few persons to determine the safety of a new drug or invasive medical device, for drugs, dosage or toxicity limits should be obtained |
phase II clinical trial
phase II | a clinical trial on more persons than in phase I, intended to evaluate the efficacy of a treatment for the condition it is intended to treat, possible side effects are monitored |
phase III clinical trial
phase III | a large clinical trial of a treatment or drug that in phase I and phase II has been shown to be efficacious with tolerable side effects, after successful conclusion of these clinical trials it will receive formal approval from the FDA |
phase IV clinical trial
phase IV | sometimes the FDA approves a drug for general use but requires the manufacturer to continue to monitor its effects, during this phase the drug may be tried on slightly different patient populations than those studied in earlier trials |
preclinical trial
preclinical test
preclinical phase | a laboratory test of a new drug or a new invasive medical device on animal subjects, conducted to gather evidence justifying a clinical trial |
| phase-out | the act or instance of a planned discontinuation |
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 |
| phase | (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun), the full phase of the moon |
phase modulation
PM | modulation of the phase of the carrier wave |
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 |
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 |
phase change
phase transition
state change
physical change | a change from one state (solid or liquid or gas) to another without a change in chemical composition |
| phase of cell division | a stage in meiosis or mitosis |
phase
form | (physical chemistry) a distinct state of matter in a system, matter that is identical in chemical composition and physical state and separated from other material by the phase boundary, the reaction occurs in the liquid phase of the system |
dispersed phase
dispersed particles | (of colloids) a substance in the colloidal state |
dispersing phase
dispersion medium
dispersing medium | (of colloids) a substance in which another is colloidally dispersed |
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 |
anal stage
anal phase | (psychoanalysis) the second sexual and social stage of a child's development during which bowel control is learned |
genital stage
genital phase | (psychoanalysis) the fifth sexual and social stage in a person's development occurring during adolescence, interest focuses on sexual activity |
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 |
oral stage
oral phase | (psychoanalysis) the first sexual and social stage of an infant's development, the mouth is the focus of the libido and satisfaction comes from suckling and chewing and biting |
phallic stage
phallic phase | (psychoanalysis) the third stage in a child's development when awareness of and manipulation of the genitals is supposed to be a primary source of pleasure |
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 |
| phase of the moon | a time when the Moon presents a particular recurring appearance |
new moon
new phase of the moon | the time at which the Moon appears as a narrow waxing crescent |
full moon
full-of-the-moon
full phase of the moon
full | the time when the Moon is fully illuminated, the moon is at the full |
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 |