ferroelectricPronunciation: /ˌfɛrəʊɪˈlɛktrɪk/ PhysicsDefinition of ferroelectric adjective (of a substance) exhibiting permanent electric polarization which varies in strength with the applied electric field. noun a ferroelectric substance. Derivatives ferroelectricityPronunciation: /-ˈtrɪsɪti/ noun ferroelectric in other Oxford dictionaries Definition of ferroelectric in the US English dictionary