| amrinone | (noun) a drug (trade name Inocor) used intravenously in heart failure; increases strength of contraction of myocardium | Synonyms: Inocor |
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| benzoquinone | (noun) any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes | Synonyms: quinone |
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| butanone | (noun) colorless soluble flammable liquid ketone used as a solvent for resins and as a paint remover and in lacquers and cements and adhesives and cleaning fluids and celluloid | Synonyms: methyl ethyl ketone |
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| chloroacetophenone | (noun) a tear gas that is weaker than CS gas but lasts longer | Synonyms: CN gas |
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| naphthoquinone | (noun) a fat-soluble vitamin that helps in the clotting of blood | Synonyms: antihemorrhagic factor, vitamin K |
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| none | (adjective) not any; entity, negative pronoun | - |
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| (noun) a service in the Roman Catholic Church formerly read or chanted at 3 PM (the ninth hour counting from sunrise) but now somewhat earlier | - |
| (noun) a canonical hour that is the ninth hour of the day counting from sunrise | - |
| (adverb) not at all or in no way | - |
| phylloquinone | (noun) a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent | Synonyms: phytonadione, vitamin K1 |
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| propanone | (noun) the simplest ketone; a highly flammable liquid widely used as an organic solvent and as material for making plastics | Synonyms: acetone, dimethyl ketone |
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| quinone | (noun) any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes | Synonyms: benzoquinone |
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| rotenone | (noun) a white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube | - |
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| ubiquinone | (noun) any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration | Synonyms: coenzyme Q |
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