linseed oil

Từ điển Oxford Advanced Learner 8th

lin·seed oil [linseed oil] BrE [ˌlɪnsiːd ˈɔɪl] NAmE [ˌlɪnsiːd ˈɔɪl] (also flax·seed oil) noun uncountable
an oil made from ↑flax seeds, used in paint or to protect wood, etc.
See also: ↑flaxseed oil