adj :  being or composed of polyunsaturated fatty acids that have the final double bond in the hydrocarbon chain between the third and fourth carbon atoms from the end of the molecule opposite that of the carboxylic acid group and that are found esp. in fish, fish oils, vegetable oils, and green leafy vegetables omega-3 n 
 
 
 
Similar sounding terms:  ome·ga 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.