(pharmacology) A prostaglandin analogue.

Any plant of the genus Helianthus, so called probably from the form and color of its floral head, having the form of a large disk surrounded by yellow ray flowers.

The common poppy (Papaver rhoeas), widespread in western Eurasia and North Africa, formerly a common agricultural weed, now often used in gardens.

A partial occlusion, typically of the intestine.