| NOUN | process | natural action, natural process, action, activity | a process existing in or produced by nature (rather than by the intent of human beings) |
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| Meaning | A process existing in or produced by nature (rather than by the intent of human beings). | |
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| Synonyms | natural process, action, activity | |
| Narrower | absorption | (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium |
| 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) | |
| antiredeposition | The process of preventing redeposition | |
| 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 | |
| chemical process, chemical change, chemical action | (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved | |
| 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 / heat or other properties by massive motion within the atmosphere | |
| curdling, clotting, coagulation | The process of forming semisolid lumps in a liquid / liquid | |
| decay | The process of gradually becoming inferior | |
| demagnetization, demagnetisation | The process of removing magnetization | |
| 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 | |
| dissolution, disintegration | separation into component parts | |
| distillation, distillment | The process of purifying a liquid / 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 | |
| electrophoresis, cataphoresis, dielectrolysis, ionophoresis | The motion of charged particles in a colloid under the influence of an electric field | |
| establishment, ecesis | (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 | |
| flow | Any uninterrupted stream or discharge | |
| formation | natural process that causes something to form | |
| fossilization, fossilisation | The process of fossilizing a plant or animal that existed in some earlier age | |
| geological process, geologic process | (geology) a natural process whereby geological features are modified | |
| hardening, solidifying, solidification, set, curing | The process of becoming hard or solid by cooling or drying or crystallization | |
| inactivation | The process of rendering inactive | |
| ion exchange | A process in which ions are exchanged between a solution and an insoluble (usually resinous) solid | |
| ionization, ionisation | The process of ionizing / ionizing | |
| leach, leaching | The process of leaching / leaching / leaching | |
| magnetization, magnetisation, magnetic induction | The process that makes a substance magnetic (temporarily or permanently) | |
| materialization, materialisation | The process of coming into being | |
| nuclear reaction | (physics) a process that alters the energy or structure or composition of atomic nuclei | |
| opacification | The process of becoming cloudy or opaque | |
| oscillation | The process of oscillating between states | |
| oxygenation | The process of providing or combining or treating with oxygen | |
| pair production, pair creation, pair formation | The transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus | |
| phase change, phase transition, state change, physical change | A change from one state (solid or liquid / liquid or gas) to another without a change in chemical composition | |
| precession of the equinoxes | A slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation | |
| radiation | The spread of a group of organisms into new habitats | |
| release | A process that liberates or discharges something | |
| saltation | (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface | |
| scattering | The physical process in which particles are deflected haphazardly as a result of collisions | |
| sericulture | Raising silkworms / silkworms in order to obtain raw silk | |
| sink | (technology) a process that acts to absorb or remove energy or a substance from a system | |
| soak, soakage, soaking | The process of becoming softened and saturated as a consequence of being immersed / immersed in water (or other liquid / liquid) | |
| softening | The process of becoming softer | |
| sorption | The process in which one substance takes up or holds another (by either absorption or adsorption) | |
| source | (technology) a process by which energy or a substance enters a system | |
| stiffening, rigidifying, rigidification | The process of becoming stiff or rigid | |
| stimulation | (physiology) the effect of a stimulus (on nerves or organs etc.) | |
| succession, ecological succession | (ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established | |
| survival, survival of the fittest, natural selection, selection | A natural process resulting in the evolution of organisms best adapted to the environment | |
| synergy, synergism | The working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects | |
| temperature change | A process whereby the degree of hotness of a body / body (or medium) changes | |
| transduction | The process whereby a transducer accepts energy in one form and gives back related energy in a different form | |
| transpiration | The passage of gases through fine tubes because of differences in pressure or temperature | |
| vitrification | The process of becoming vitreous | |
| Broader | process, physical process | A sustained phenomenon or one marked by gradual changes through a series of states |
| Spanish | acción, acción natural, proceso natural | |
| Catalan | procés natural | |
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