Word parts lubricate + -tion Pronunciation IPA (key): /ˌluː.brɪˈkeɪ.ʃən/ or US Audio (UK)(file) Noun Singular lubrication Plural lubrications (countable & uncountable) Lubrication is the act of applying a lubricant between moving surfaces in contact in order to reduce friction.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads