Medical Definition of lanatoside
: any of three poisonous crystalline cardiac steroid glycosides occurring in the leaves of a foxglove (Digitalis lanata):a: the glycoside C49H76O19 yielding digitoxin, glucose, and acetic acid on hydrolysis—called also digilanid A, lanatoside Ab: the glycoside C49H76O20 yielding gitoxin, glucose, and acetic acid on hydrolysis—called also digilanid B, lanatoside Bc: the bitter glycoside C49H76O20 yielding digoxin, glucose, and acetic acid on hydrolysis and used similarly to digitalis—called also digilanid C, lanatoside C
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