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peptization |
Noun
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the process of converting to a sol |
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peptisation |
Noun
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the process of converting to a sol |
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perennation |
Noun
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the process of living through a number of years (as a perennial plant) |
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peristalsis |
Noun
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the process of wavelike muscle contractions of the alimentary tract that moves food along |
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pervasion |
Noun
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the process of permeating or infusing something with a substance |
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passing water |
Noun
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a euphemism for urination |
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petrification |
Noun
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the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape |
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phagocytosis |
Noun
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process in which phagocytes engulf and digest microorganisms and cellular debris |
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phase change |
Noun
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a change from one state (solid or liquid or gas) to another without a change in chemical composition |
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phase transition |
Noun
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a change from one state (solid or liquid or gas) to another without a change in chemical composition |
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physical change |
Noun
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a change from one state (solid or liquid or gas) to another without a change in chemical composition |
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phase of cell division |
Noun
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a stage in meiosis or mitosis |
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photochemical reaction |
Noun
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a chemical reaction produced by the action of light |
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photoelectric emission |
Noun
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the release or absorption of quanta above a certain energy level |
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photoplate making |
Noun
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the process whereby printing surfaces (plates or cylinders) are produced by photographic methods |
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photosynthesis |
Noun
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synthesis of compounds with the aid of radiant energy, especially in plants |
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pinocytosis |
Noun
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process by which certain cells can engulf and incorporate droplets of fluid |
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pitting |
Noun
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the formation of small pits in a surface as a consequence of corrosion |
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planation |
Noun
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the process of erosion whereby a level surface is produced |
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plastination |
Noun
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a process involving fixation and dehydration and forced impregnation and hardening of biological tissues |
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polymerization |
Noun
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a chemical process that combines several monomers to form a polymer or polymeric compound |
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polymerisation |
Noun
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a chemical process that combines several monomers to form a polymer or polymeric compound |
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population growth |
Noun
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increase in the number of people who inhabit a territory or state |
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positive feedback |
Noun
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feedback in phase with (augmenting) the input |
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potentiation |
Noun
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(medicine) the synergistic effect of two drugs given simultaneously |
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powder photography |
Noun
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a process for identifying minerals or crystals |
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powder method |
Noun
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a process for identifying minerals or crystals |
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powder technique |
Noun
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a process for identifying minerals or crystals |
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precession of the equinoxes |
Noun
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a slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation |
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prechlorination |
Noun
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chlorination prior to another chemical process |
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precocious dentition |
Noun
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teething at an earlier age than expected |
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premature ejaculation |
Noun
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ejaculation during the early stages of sexual excitement or soon after the insertion of the penis into the vagina |
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printing operation |
Noun
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an operation that controls the printing or display of information |
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priority processing |
Noun
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data processing in which the operations performed are determined by a system of priorities |
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processing |
Noun
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preparing or putting through a prescribed procedure |
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professionalization |
Noun
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the social process whereby people come to engage in an activity for pay or as a means of livelihood |
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professionalisation |
Noun
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the social process whereby people come to engage in an activity for pay or as a means of livelihood |
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proliferation |
Noun
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growth by the rapid multiplication of parts |
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proliferation |
Noun
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a rapid increase in number (especially a rapid increase in the number of deadly weapons) |
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pachytene |
Noun
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the third stage of the prophase of meiosis |
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pair production |
Noun
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the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus |
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pair creation |
Noun
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the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus |
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pair formation |
Noun
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the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus |
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palingenesis |
Noun
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emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species |
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paper chromatography |
Noun
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chromatography that uses selective adsorption on a strip of paper |
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paper electrophoresis |
Noun
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electrophoresis carried out on filter paper |
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parallel operation |
Noun
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the simultaneous execution of two or more operations |
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parthenocarpy |
Noun
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(botany) the development of a fruit without fertilization or seeds |
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parthenogenesis |
Noun
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process in which an unfertilized egg develops into a new individual |
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parthenogenesis |
Noun
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human conception without fertilization by a man |