variation, variance - an activity that varies from a norm or standard; "any variation in his routine was immediately reported"

space walk - any kind of physical activity outside a spacecraft by one of the crew

domesticity - domestic activities or life; "making a hobby of domesticity"

operation - the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride"

operation - a planned activity involving many people performing various actions; "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations"

practice, pattern - a customary way of operation or behavior; "it is their practice to give annual raises"; "they changed their dietary pattern"

diversion, recreation - an activity that diverts or amuses or stimulates; "scuba diving is provided as a diversion for tourists"; "for recreation he wrote poetry and solved crossword puzzles"; "drug abuse is often regarded as a form of recreation"

cup of tea, dish, bag - an activity that you like or at which you are superior; "chemistry is not my cup of tea"; "his bag now is learning to play golf"; "marriage was scarcely his dish"

followup, follow-up - an activity that continues something that has already begun or that repeats something that has already been done

game - a contest with rules to determine a winner; "you need four people to play this game"

turn, play - (game) the activity of doing something in an agreed succession; "it is my turn"; "it is still my play"

music - musical activity (singing or whistling etc.); "his music was his central interest"

burst, fit - a sudden flurry of activity (often for no obvious reason); "a burst of applause"; "a fit of housecleaning"

work - activity directed toward making or doing something; "she checked several points needing further work"

deeds, works - performance of moral or religious acts; "salvation by deeds"; "the reward for good works"

service - (law) the acts performed by an English feudal tenant for the benefit of his lord which formed the consideration for the property granted to him

occupation - any activity that occupies a person's attention; "he missed the bell in his occupation with the computer game"

committal to writing, writing - the activity of putting something in written form; "she did the thinking while he did the writing"

role - normal or customary activity of a person in a particular social setting; "what is your role on the team?"

waste, wastefulness, dissipation - useless or profitless activity; using or expending or consuming thoughtlessly or carelessly; "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources"

attempt, effort, try, endeavor, endeavour - earnest and conscientious activity intended to do or accomplish something; "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try"

control - the activity of managing or exerting control over something; "the control of the mob by the police was admirable"

protection - the activity of protecting someone or something; "the witnesses demanded police protection"

sensory activity - activity intended to achieve a particular sensory result

didactics, education, educational activity, instruction, pedagogy, teaching - the activities of educating or instructing; activities that impart knowledge or skill; "he received no formal education"; "our instruction was carefully programmed"; "good classroom teaching is seldom rewarded"

representation - an activity that stands as an equivalent of something or results in an equivalent

disassembly, dismantlement, dismantling - the act of taking something apart (as a piece of machinery); "Russia and the United States discussed the dismantling of their nuclear weapons"

puncture - the act of puncturing or perforating

inactivity - being inactive; being less active

state - the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"

agency - the state of being in action or exerting power; "the agency of providence"; "she has free agency"

busyness, hum - the state of being or appearing to be actively engaged in an activity; "they manifested all the busyness of a pack of beavers"; "there is a constant hum of military preparation"

behaviour, behavior - the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"

operation - the state of being in effect or being operative; "that rule is no longer in operation"

overdrive - the state of high or excessive activity or productivity or concentration; "Troops are ready to go into overdrive as soon as the signal is given"; "Melissa's brain was in overdrive"

play - a state in which action is feasible; "the ball was still in play"; "insiders said the company's stock was in play"

swing - a state of steady vigorous action that is characteristic of an activity; "the party went with a swing"; "it took time to get into the swing of things"

control - (physiology) regulation or maintenance of a function or action or reflex etc; "the timing and control of his movements were unimpaired"; "he had lost control of his sphincters"

respiration - a single complete act of breathing in and out; "thirty respirations per minute"

breath - the process of taking in and expelling air during breathing; "he took a deep breath and dived into the pool"; "he was fighting to his last breath"

insemination - the introduction of semen into the genital tract of a female

sleeping - the suspension of consciousness and decrease in metabolic rate

response, reaction - a bodily process occurring due to the effect of some antecedent stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age"

crying, tears, weeping - the process of shedding tears (usually accompanied by sobs or other inarticulate sounds); "I hate to hear the crying of a child"; "she was in tears"

anastalsis - muscular action of the alimentary tract in a direction opposite to peristalsis

expelling, discharge, emission - any of several bodily processes by which substances go out of the body; "the discharge of pus"

expectoration - the process of coughing up and spitting out

festering, suppuration, maturation - (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus

healing - the natural process by which the body repairs itself

hypostasis - the accumulation of blood in an organ

lactation - the production and secretion of milk by the mammary glands

opsonisation, opsonization - process whereby opsonins make an invading microorganism more susceptible to phagocytosis

overactivity - excessive activity; "overactivity of the sebaceous glands causes the skin to become oily"

peristalsis, vermiculation - the process of wavelike muscle contractions of the alimentary tract that moves food along

phagocytosis - process in which phagocytes engulf and digest microorganisms and cellular debris; an important defense against infection

pinocytosis - process by which certain cells can engulf and incorporate droplets of fluid

placentation - the formation of the placenta in the uterus

tanning - process in which skin pigmentation darkens as a result of exposure to ultraviolet light

transpiration - the process of giving off or exhaling water vapor through the skin or mucous membranes

chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

capability, capacity - the susceptibility of something to a particular treatment; "the capability of a metal to be fused"

physical process, process - a sustained phenomenon or one marked by gradual changes through a series of states; "events now in process"; "the process of calcification begins later for boys than for girls"

radiation - the spread of a group of organisms into new habitats

absorption - (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium; "the absorption of photons by atoms or molecules"

acidification - the process of becoming acid or being converted into an acid

adiabatic process - (thermodynamics) any process that occurs without gain or loss of heat

aeration - the process of exposing to air (so as to purify); "the aeration of the soil"

capture - any process in which an atomic or nuclear system acquires an additional particle

capture - a process whereby a star or planet holds an object in its gravitational field

centrifugation - the process of separating substances of different densities by the use of a centrifuge

chromatography - a process used for separating mixtures by virtue of differences in absorbency

concretion - the formation of stonelike objects within a body organ (e.g., the kidneys)

condensation - the process of changing from a gaseous to a liquid or solid state

convection - (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere

decay - the process of gradually becoming inferior

desorption - changing from an adsorbed state on a surface to a gaseous or liquid state

diffusion - (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration

distillation, distillment - the process of purifying a liquid by boiling it and condensing its vapors

drift - the gradual departure from an intended course due to external influences (as a ship or plane)

effervescence - the process of bubbling as gas escapes

cataphoresis, dielectrolysis, electrophoresis, ionophoresis - the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode

ecesis, establishment - (ecology) the process by which a plant or animal becomes established in a new habitat

extinction - the reduction of the intensity of radiation as a consequence of absorption and radiation

extraction - the process of obtaining something from a mixture or compound by chemical or physical or mechanical means

feedback - the process in which part of the output of a system is returned to its input in order to regulate its further output

filtration - the process whereby fluids pass through a filter or a filtering medium

flocculation - the process of flocculating; forming woolly cloudlike aggregations

flow - any uninterrupted stream or discharge

formation - natural process that causes something to form; "the formation of gas in the intestine"; "the formation of crystals"; "the formation of pseudopods"

fossilisation, fossilization - the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone

curing, solidification, solidifying, hardening, set - the process of becoming hard or solid by cooling or drying or crystallization; "the hardening of concrete"; "he tested the set of the glue"

inactivation - the process of rendering inactive; "the gene inactivation system"; "thermal inactivation of serum samples"

ion exchange - a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid; widely used in industrial processing

ionisation, ionization - the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas

trait - a distinguishing feature of your personal nature