QUINORA
\kwˈɪnɔːɹə], \kwˈɪnɔːɹə], \k_w_ˈɪ_n_ɔː_ɹ_ə]\
Definitions of QUINORA
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By Princeton University
By DataStellar Co., Ltd
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An optical isomer of quinine, extracted from the bark of the Cinchona tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular action potential, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.
By DataStellar Co., Ltd
Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].