| epidemic | (noun) a widespread outbreak of an infectious disease; many people are infected at the same time | - |
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| epidemiologist | (noun) a medical scientist who studies the transmission and control of epidemic diseases | - |
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| epidemiology | (noun) the branch of medical science dealing with the transmission and control of disease | - |
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| epidendron | (noun) any of various orchids of the genus Epidendrum | - |
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| epidermis | (noun) the outer layer of the skin covering the exterior body surface of vertebrates | Synonyms: cuticle |
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| epidiascope | (noun) an optical projector that gives images of both transparent and opaque objects | - |
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| epididymis | (noun) a convoluted tubule in each testis; carries sperm to vas deferens | - |
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| epididymitis | (noun) painful inflammation of the epididymis | - |
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| epidural | (noun) regional anesthesia resulting from injection of an anesthetic into the epidural space of the spinal cord; sensation is lost in the abdominal and genital and pelvic areas; used in childbirth and gynecological surgery | Synonyms: epidural anaesthesia, epidural anesthesia |
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| intrepidity | (noun) resolute courageousness | Synonyms: dauntlessness |
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| lepidobotrys | (noun) African tree often classified in other families; similar to the Costa Rican caracolito in wood structure as well as in fruit and flowers and leaves and seeds | - |
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| lepidocrocite | (noun) a red to reddish brown mineral consisting of iron oxide hydroxide; often found in iron ores together with goethite | - |
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| lepidolite | (noun) a mineral of the mica group; an important source of lithium | - |
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| lepidomelane | (noun) a mica that is a biotite containing iron | - |
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| lepidophobia | (noun) a morbid fear of snakes | - |
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| lepidopteran | (noun) insect that in the adult state has four wings more or less covered with tiny scales | Synonyms: lepidopteron, lepidopterous insect |
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| lepidopterist | (noun) an entomologist who specializes in the collection and study of butterflies and moths | Synonyms: butterfly collector, lepidopterologist |
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| lepidopterologist | (noun) an entomologist who specializes in the collection and study of butterflies and moths | Synonyms: butterfly collector, lepidopterist |
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| lepidopterology | (noun) the branch of entomology dealing with Lepidoptera | Synonyms: lepidoptery |
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| lepidopteron | (noun) insect that in the adult state has four wings more or less covered with tiny scales | Synonyms: lepidopteran, lepidopterous insect |
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| lepidoptery | (noun) the branch of entomology dealing with Lepidoptera | Synonyms: lepidopterology |
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| tepidity | (noun) a warmness resembling the temperature of the skin | Synonyms: lukewarmness, tepidness |
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| tepidness | (noun) a warmness resembling the temperature of the skin | Synonyms: lukewarmness, tepidity |
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| (noun) lack of passion, force or animation | Synonyms: lukewarmness |
| trepidation | (noun) a feeling of alarm or dread | - |
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