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say it: RET-i-nawl
retinol is a noun meaning "an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene". It is pronounced /ˈɹɛtɪˌnɔl/ — RET-i-nawl. It carries one recorded sense.
an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for retinol come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.