/men'euh duy"ohn/ , n. Pharm.
a synthetic yellow crystalline powder, C 11 H 8 O 2 , insoluble in water, used as a vitamin K supplement. Also called vitamin K 3 .
[ 1940-45; ME(THYL) + NA(PHTHALENE) + DI- 1 + -ONE ]
/men'euh duy"ohn/ , n. Pharm.
a synthetic yellow crystalline powder, C 11 H 8 O 2 , insoluble in water, used as a vitamin K supplement. Also called vitamin K 3 .
[ 1940-45; ME(THYL) + NA(PHTHALENE) + DI- 1 + -ONE ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012