1. A vegetable odoriferous substance obtained from the Tonka bean.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• coumarine,
• coumaron,
• xoumarin,
• voumarin,
• foumarin,
• doumarin,
• ciumarin,
• ckumarin,
• clumarin,
• cpumarin,
• c0umarin,
• c9umarin,
• coymarin,
• coumarun,
• coumawrin,
• comarin,
• Coumerin,
• coumaring,
• Coumearin,
• Counmerin

The plural of the "Coumarin" can be the "coumarins".

The singular of the "Coumarin" can be the "Coumarin".