also  kel*lin  n :  a crystalline compound C₁₄H₁₂O₅ obtained from the fruit of a Middle Eastern plant (Ammi visnaga) of the family Umbelliferae and used as an antispasmodic in asthma and a coronary vasodilator in angina pectoris .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.