Definition of linseed oil noun from the Oxford Advanced American Dictionary

 

linseed oil

 noun
noun
NAmE//ˈlɪnsid ˌɔɪl//
 
(also flaxseed oil)[uncountable]
 
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an oil made from flax seeds, used in paint or to protect wood, etc.
See the Oxford Advanced Learner's Dictionary entry: linseed oil