papaver- +

A genus (the type of the family Papaveraceae) of chiefly bristly hairy herbs that contains the opium poppy.

Referring to, pertaining to, or resembling, a natural order of plants (Papaveraceae) of which the poppy, the celandine, and the bloodroot are well-known examples.

A mixture of all of the alkaloids of the opium poppy and is better tolerated by dogs than morphine.

A white, crystalline, nonnarcotic, alkaloidal powder, obtained from opium, but not a morphine derivative and not habit-forming or addicting; used in the treatment of spasms of involuntary muscles; especially, of the stomach, bronchi, and arteries.

Poppy or poppies.

Referring to, or pertaining to, the poppy; of the nature of the poppy.