/peuh pav"euh reen', -euhr in, peuh pay"veuh reen', -veuhr in/ , n. Pharm.
a white, crystalline, nonnarcotic, alkaloidal powder, C 20 H 21 NO 4 , obtained from opium, but not a morphine derivative and not habit-forming or addicting, used in the treatment of spasms of involuntary muscle, esp. of the stomach, bronchi, and arteries.
[ 1855-60; papaver POPPY + -INE 2 ]