Definition of lipid noun from the Oxford Advanced Learner's Dictionary

 

lipid

 noun
noun
BrE BrE//ˈlɪpɪd//
 
; NAmE NAmE//ˈlɪpɪd//
 
(chemistry) Cell biology
 
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any of a group of natural substances which do not dissolve in water, including plant oils and steroids See related entries: Cell biology Word Origin early 20th cent.: from French lipide, based on Greek lipos ‘fat’.
See the Oxford Advanced American Dictionary entry: lipid