Epinephrine meaning

ĕpə-nĕfrĭn
A hormone secreted by the adrenal medulla that is released into the bloodstream in response to physical or mental stress, as from fear or injury. It initiates many bodily responses, including the stimulation of heart action and an increase in blood pressure, metabolic rate, and blood glucose concentration.
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A white to brownish crystalline compound, C9 H13 NO3 , isolated from the adrenal glands of certain mammals or synthesized and used in medicine as a heart stimulant, vasoconstrictor, and bronchial relaxant.
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A hormone, C9H13NO3, secreted by the medulla of the adrenal gland, that stimulates the heart, increases blood sugar, muscular strength, and endurance, etc.; adrenaline: it is extracted from animal adrenals or prepared synthetically.
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A hormone secreted by the adrenal medulla that is released into the bloodstream in response to physical or mental stress, as from fear or injury. It initiates many bodily responses, including the stimulation of heart action and an increase in blood pressure, metabolic rate, and blood glucose concentration.
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A white to brownish crystalline compound, C9 H13 NO3 , isolated from the adrenal glands of certain mammals or synthesized and used in medicine as a heart stimulant, vasoconstrictor, and bronchial relaxant.
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A hormone that is secreted by the adrenal gland in response to physical or mental stress, as from fear, and is regulated by the autonomic nervous system. The release of epinephrine causes an increase in heart rate, blood pressure, and respiratory rate. Epinephrine also raises glucose levels in the blood for use as fuel when more alertness or greater physical effort is needed. Also called adrenaline. Chemical formula: C9H13NO3.
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(biochemistry, biochemistry, organic chemistry) A catecholamine hormone and neurotransmitter; as a hormone, secreted by the adrenal gland in response to stress (when it stimulates the autonomic nervous system); as a neurotransmitter, synthesized from norepinephrine.
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Origin of epinephrine

  • epi– nephr(o)– –ine

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek ἐπί (epi, “upon”) + νεφρός (nephros, “kidney”) + -ine.

    From Wiktionary