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pyramid selling
pyramidal peak
pyramidal tract
Pyramus and Thisbe
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pyridoxine

pyr·i·dox·ine [ pìrri dók sn, pìrri dóksin ]


noun 
Definition:
 
pyrimidine derivative active in metabolic processes: a form of vitamin B6 derived from pyrimidine, found in cereals, yeast, liver, and fish. In an organism, pyridoxine is metabolically changed to pyridoxal and pyridoxamine. C18H11NO3

[Mid-20th century. <pyridine + oxy-]
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