Pronunciation (US) IPA (key): /sɪˈkriːʃ(ə)n/ Audio (UK)(file) Noun Singular secretion Plural secretions (countable) Secretion is any substance that is secreted by an organism (uncountable) Secretion is the act of secreting a substance, especially from a glandWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads