A round wooden stool used by piano players. It is less stable than the rectangular piano bench. The height can be adjusted by simply spinning the seat clockwise or counterclockwise, respectively.

A laxative.

(organic chemistry) An angular furanocoumarin chemical compound found in angelica root, 2-(9-{[(2Z)-2-methylbut-2-enoyl]oxy}-2-oxo-2H,8H,9H-furo[2,3-H]chromen-8-yl)propan-2-yl (2Z)-2-methylbut-2-en...

Not choreographed.