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Definition of Omega-3 noun from the Oxford Advanced Learner's Dictionary

 

Omega-3

 noun
noun
BrE BrE//ˌəʊmɪɡə ˈθriː//
 
; NAmE NAmE//oʊˌmeɪɡə ˈθriː//
 
(also Omega-3 fatty acid
BrE
 
; NAmE
 
)
Diet
 
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any of a group of acids, found mainly in fish oils, that many people think are important for human health the debate about the health benefits of taking Omega-3 supplements See related entries: Diet
See the Oxford Advanced American Dictionary entry: Omega-3