| ARCHEOASTRONOMY | • archeoastronomy n. Alternative spelling of archaeastronomy. • ARCHEOASTRONOMY n. the scientific study of the beliefs and practices concerning astronomy that existed in ancient and prehistoric civilizations.
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| ECTOMYCORRHIZAE | • ectomycorrhizae n. Plural of ectomycorrhiza. • ECTOMYCORRHIZA n. a type of mycorrhiza in which the fungus forms a layer on the outside of the roots of the plant.
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| ECTOMYCORRHIZAS | • ectomycorrhizas n. Plural of ectomycorrhiza. • ECTOMYCORRHIZA n. a type of mycorrhiza in which the fungus forms a layer on the outside of the roots of the plant.
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| ELECTROMYOGRAPH | • electromyograph n. A device used in electromyography to generate electromyograms. • ELECTROMYOGRAPH n. an instrument for diagnosing neuromuscular disorders.
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| ERYTHROMELALGIA | • erythromelalgia n. A rare neurovascular peripheral pain disorder in which blood vessels, usually in the lower extremities… • ERYTHROMELALGIA n. a state of excessive dilation of the superficial blood vessels of the feet or hands.
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| HEMATOPORPHYRIN | • hematoporphyrin n. (Biochemistry) The porphyrin portion of heme (minus the iron atom). • HEMATOPORPHYRIN n. any of several porphyrins that are hydrated derivatives of protoporphyrins.
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| HYDROMETALLURGY | • hydrometallurgy n. The field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals… • HYDROMETALLURGY n. the treatment of ores by wet processes (as leaching).
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| HYDROMETRICALLY | • hydrometrically adv. By means of hydrometry. • HYDROMETRICAL adv. relating to measurement by hydrometer, also HYDROMETRIC.
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| HYETOMETROGRAPH | • HYETOMETROGRAPH n. an instrument for recording rainfall. | 
| HYGROMETRICALLY | • hygrometrically adv. By means of, or in terms of, hygrometry. • HYGROMETRICAL adv. relating to hygrometry, also HYGROMETRIC.
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| HYPERMETROPICAL | • hypermetropical adj. Synonym of hypermetropic. • HYPERMETROPICAL adj. longsighted, also HYPERMETROPIC.
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| HYPERNATRAEMIAS | • hypernatraemias n. Plural of hypernatraemia. • HYPERNATRAEMIA n. an abnormally high concentration of sodium chloride (salt) in the blood, esp. in infants.
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| HYPERPARASITISM | • hyperparasitism n. (Biology) parasitism by one parasite upon another. • HYPERPARASITISM n. the state of being a hyperparasite, a parasite that is parasitic upon another parasite.
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| PHARMACOTHERAPY | • pharmacotherapy n. (Medicine) The use of pharmaceuticals to treat disease. • PHARMACOTHERAPY n. the treatment of disease and esp. mental illness with drugs.
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| PSYCHROMETRICAL | • psychrometrical adj. Psychrometric. • PSYCHROMETRICAL adj. relating to measurement by psychrometer, also PSYCHOMETRIC, PSYCHOMETRICAL, PSYCHROMETRIC.
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