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%ما هو (من)٪ 1 - تعريف
CHEMICAL COMPOUND
Veratrine; 3-veratroylveracevine; C36H51NO11
veratrine
['v?r?tri:n, -?n]
¦ noun Chemistry a poisonous substance consisting of a mixture of alkaloids which occurs in the seeds of sabadilla and related plants.
Origin
C19: from Fr. veratrine, from L. veratrum 'hellebore'.
Veratrine
·noun A poisonous alkaloid obtained from the root hellebore (Veratrum) and from sabadilla seeds as a white crystalline powder, having an acrid, burning taste. It is sometimes used externally, as in ointments, in the local treatment of neuralgia and rheumatism. Called also veratria, and veratrina.
ويكيبيديا
Veratridine
Veratridine is a steroidal alkaloid found in plants of the lily family, specifically the genera Veratrum and Schoenocaulon. Upon absorption through the skin or mucous membranes, it acts as a neurotoxin by binding to and preventing the inactivation of voltage-gated sodium ion channels in heart, nerve, and skeletal muscle cell membranes. Veratridine increases nerve excitability and intracellular Ca2+ concentrations.
أمثلة من مجموعة نصية لـ٪ 1
1. "He explained that the acid was for disinfecting syringes for injections and he also asked for other medicines such as Valda tablets." The document added that a month later a further request arrived from Padre Pio in which he asked for four grams of veratrine (painkiller) which was not available in her pharmacy so she asked her cousin who refused because he feared it was being used for faking his stigmata.