See also: Immission and immissiôn English Pronunciation IPA(key): /ɪˈmɪʃən/ Rhymes: -ɪʃən Noun immission (countable and uncountable, plural immissions) The act of immitting; injection or infusion. Antonym: emission Translations act of immitting French: immission (fr) f German: Immission (de) f Italian: immissione (it) f Spanish: inmisión f Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads