e ‧ mul ‧ si ‧ fy /ɪˈmʌlsəfaɪ, ɪˈmʌlsɪfaɪ/ BrE AmE verb ( past tense and past participle emulsified , present participle emulsifying , third person singular emulsifies ) [intransitive and transitive]
to combine to become a smooth mixture, or to make two liquids do this