act deed human action human activity | something that people do or cause to happen |
action | something done (usually as opposed to something said), there were stories of murders and other unnatural actions |
course course of action | a mode of action, if you persist in that course you will surely fail, once a nation is embarked on a course of action it becomes extremely difficult for any retraction to take place |
maneuver manoeuvre evasive action | an action aimed at evading an opponent |
performance execution carrying out carrying into action | the act of performing, of doing something successfully, using knowledge as distinguished from merely possessing it, they criticised his performance as mayor, experience generally improves performance |
action | the most important or interesting work or activity in a specific area or field, the action is no longer in technology stocks but in municipal bonds, gawkers always try to get as close to the action as possible |
reflex reflex response reflex action instinctive reflex innate reflex inborn reflex unconditioned reflex physiological reaction | an automatic instinctive unlearned reaction to a stimulus |
military action action | a military engagement, he saw action in Korea |
police action | a local military action without declaration of war, against violators of international peace and order |
replay instant replay action replay | the immediate rebroadcast of some action (especially sports action) that has been recorded on videotape |
group action | action taken by a group of people |
direct action | a protest action by labor or minority groups to obtain their demands |
legal action action action at law | a judicial proceeding brought by one party against another, one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong |
action | an act by a government body or supranational organization, recent federal action undermined the segregationist position, the United Nations must have the power to propose and organize action without being hobbled by irrelevant issues, the Union action of emancipating Southern slaves |
class action class-action suit | a lawsuit brought by a representative member of a large group of people on behalf of all members of the group |
civil action | legal action to protect a private civil right or to compel a civil remedy (as distinguished from criminal prosecution) |
job action | a temporary action by workers to protest management decision or to make demands |
Abstract Expressionism action painting | a New York school of painting characterized by freely created abstractions, the first important school of American painting to develop independently of European styles |
action action mechanism | the operating part that transmits power to a mechanism, the piano had a very stiff action |
arena scene of action | a playing field where sports events take place |
delayed action | a mechanism that automatically delays the release of a camera shutter for a fixed period of time so that the photographer can appear in the picture |
piano action | action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed |
pump action slide action | action mechanism in a modern rifle or shotgun, a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round |
action | the trait of being active and energetic and forceful, a man of action |
right of action | the legal right to sue |
possibility possible action opening | a possible alternative, bankruptcy is always a possibility |
impossibility impossible action | an alternative that is not available |
law of mass action | (chemistry) the law that states the following principle: the rate of a chemical reaction is directly proportional to the molecular concentrations of the reacting substances |
third law of motion Newton's third law of motion Newton's third law law of action and reaction | action and reaction are equal and opposite |
big-bang theory big bang theory | (cosmology) the theory that the universe originated sometime betweenbillion andbillion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature |
steady state theory continuous creation theory | (cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other, the steady state theory has been abandoned in favor of the big bang theory |
hypothesis possibility theory | a tentative insight into the natural world, a concept that is not yet verified but that if true would explain certain facts or phenomena, a scientific hypothesis that survives experimental testing becomes a scientific theory, he proposed a fresh theory of alkalis that later was accepted in chemical practices |
M-theory | (particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong |
string theory | (particle physics) a theory that postulates that subatomic particles are one-dimensional strings |
plan of action | a plan for actively doing something |
theory | a belief that can guide behavior, the architect has a theory that more is less, they killed him on the theory that dead men tell no tales |
theory | a well-substantiated explanation of some aspect of the natural world, an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena, theories can incorporate facts and laws and tested hypotheses, true in fact and theory |
theory of gravitation theory of gravity gravitational theory Newton's theory of gravitation | (physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them |
mass-action principle mass action | (neurology) the principle that the cortex of the brain operates as a coordinated system with large masses of neural tissue involved in all complex functioning |
preformation theory of preformation | a theory (popular in the th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell |
scientific theory | a theory that explains scientific observations, scientific theories must be falsifiable |
field theory | (physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields |
economic theory | (economics) a theory of commercial activities (such as the production and consumption of goods) |
Malthusianism Malthusian theory | Malthus' theory that population increase would outpace increases in the means of subsistence |
communications communication theory | the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.), communications is his major field of study |
set theory | the branch of pure mathematics that deals with the nature and relations of sets |
group theory | the branch of mathematics dealing with groups |
Galois theory | group theory applied to the solution of algebraic equations |
probability theory theory of probability | the branch of applied mathematics that deals with probabilities |
atomism atomic theory atomist theory atomistic theory | (chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles, the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe |