| centrifugation | (noun) the process of separating substances of different densities by the use of a centrifuge | - |
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| centrifuge | (noun) an apparatus that uses centrifugal force to separate particles from a suspension | Synonyms: extractor, separator |
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| electrification | (noun) the activity of thrilling or markedly exciting some person or group | - |
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| (noun) the act of providing electricity | - |
| gentrification | (noun) the restoration of run-down urban areas by the middle class (resulting in the displacement of low-income residents) | - |
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| loosestrife | (noun) any of numerous herbs and subshrubs of the genus Lythrum | - |
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| (noun) any of various herbs and subshrubs of the genus Lysimachia | - |
| metrification | (noun) the act of changing from imperial units of measurement to metric units: meters, grams, seconds | Synonyms: metrication |
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| (noun) writing a metrical composition (or the metrical structure of a composition) | - |
| nitrification | (noun) the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants) | - |
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| (noun) the chemical process in which a nitro group is added to an organic compound (or substituted for another group in an organic compound) | - |
| petrifaction | (noun) a rock created by petrifaction; an organic object infiltrated with mineral matter and preserved in its original form | - |
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| (noun) the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape | Synonyms: petrification |
| petrification | (noun) the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape | Synonyms: petrifaction |
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| strife | (noun) bitter conflict; heated often violent dissension | - |
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| (noun) lack of agreement or harmony | Synonyms: discord |
| trifle | (noun) something of small importance | Synonyms: small beer, trivia, triviality |
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| (noun) a detail that is considered insignificant | Synonyms: triviality |
| (noun) a cold pudding made of layers of sponge cake spread with fruit or jelly; may be decorated with nuts, cream, or chocolate | - |
| trifler | (noun) one who behaves lightly or not seriously | - |
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| trifling | (noun) the deliberate act of delaying and playing instead of working | Synonyms: dalliance, dawdling |
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| trifluoromethane | (noun) colorless gas haloform CHF3 (similar to chloroform) | Synonyms: fluoroform |
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| trifoliata | (noun) small fast-growing spiny deciduous Chinese orange tree bearing sweetly scented flowers and decorative but inedible fruit: used as a stock in grafting and for hedges | Synonyms: Poncirus trifoliata, trifoliate orange, wild orange |
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| trifurcation | (noun) the act of splitting into three branches | - |
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| ultracentrifugation | (noun) centrifugation at very high speeds | - |
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| ultracentrifuge | (noun) a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins | - |
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| vitrification | (noun) the process of becoming vitreous | - |
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| (noun) a vitrified substance; the glassy result of being vitrified | - |