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radiactividad

Definitions of radiactividad
  1. noun
    a process existing in or produced by nature (rather than by the intent of human beings)
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    types:
    proceso químico
    (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
    cromatografía
    a process used for separating mixtures by virtue of differences in absorbency
    convección
    (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
    coagulación
    the process of forming semisolid lumps in a liquid
    difusión
    (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
    alambicamiento, destilación, destilado, síntesis
    the process of purifying a liquid by boiling it and condensing its vapors
    efervescencia
    the process of bubbling as gas escapes
    extinción
    the reduction of the intensity of radiation as a consequence of absorption and radiation
    filtración
    the process whereby fluids pass through a filter or a filtering medium
    endurecimiento, solidificación
    the process of becoming hard or solid by cooling or drying or crystallization
    ionización
    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
    imanación, imantación, magnetización
    the process that makes a substance magnetic (temporarily or permanently)
    sedería, sericultura
    raising silkworms in order to obtain raw silk
    remojo, remojón
    the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid)
    sucesión
    (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
    sinergia, sinergía
    the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects
    transpiración
    the passage of gases through fine tubes because of differences in pressure or temperature
    disturbio, estela
    the flow of air that is driven backwards by an aircraft propeller
    absorción
    (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid
    adsorción
    the accumulation of molecules of a gas to form a thin film on the surface of a solid
    aglutinación
    the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated
    aluvión
    gradual formation of new land, by recession of the sea or deposit of sediment
    calcificación
    a process that impregnates something with calcium (or calcium salts)
    catálisis
    acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction
    cariadura, carie, caries
    soft decayed area in a tooth; progressive decay can lead to the death of a tooth
    reacción química
    (chemistry) a process in which one or more substances are changed into others
    cloración
    the addition or substitution of chlorine in organic compounds
    cromatografía de columna
    chromatography that uses selective adsorption by a column of powders
    convección
    the transfer of heat through a fluid (liquid or gas) caused by molecular motion
    enfriado, enfriamiento, refrigeración
    the process of becoming cooler; a falling temperature
    corrosión, desgaste
    erosion by chemical action
    decocción
    (pharmacology) the extraction of water-soluble drug substances by boiling
    descomposición, podredumbre, pudrición, pudrimiento, putrefacción
    (biology) the process of decay caused by bacterial or fungal action
    deshidratación
    the process of extracting moisture
    desalación, desalinización
    the removal of salt (especially from sea water)
    digestión
    the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat
    perdición
    the process of becoming dilapidated
    ablación, erosión, uso
    (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
    fisión
    a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
    bloqueo, congelación, ultracongelación
    the withdrawal of heat to change something from a liquid to a solid
    fusión
    a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy
    gasificación
    the process of changing into gas
    glaciación
    the process of covering the earth with glaciers or masses of ice
    calda, caldeamiento, caldeo, calefacción, calentamiento
    the process of becoming warmer; a rising temperature
    afluencia, aflujo, oleada
    the process of flowing in
    hinchazón
    the increase in volume of certain substances when they are heated (often accompanied by release of water)
    licuación, licuefacción, liquidación
    the conversion of a solid or a gas into a liquid
    metamorfismo
    change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances
    osmosis, ósmosis
    (biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
    saturación
    the process of permeating or infusing something with a substance
    petrificación
    the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape
    fotosíntesis
    synthesis of compounds with the aid of radiant energy (especially in plants)
    polimerización
    a chemical process that combines several monomers to form a polymer or polymeric compound
    precipitación
    the process of forming a chemical precipitate
    estratificación
    forming or depositing in layers
    síntesis
    the process of producing a chemical compound (usually by the union of simpler chemical compounds)
    derretimiento, deshielo, fusión
    the process whereby heat changes something from a solid to a liquid
    fermentación, fermento
    a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
    type of:
    proceso
    a sustained phenomenon or one marked by gradual changes through a series of states
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