médiatrice w języku angielskim

mediator [mediators]▼◼◼◼(one who negotiates between parties seeking mutual agreement)
noun
[UK: ˈmiː.dɪeɪ.tə(r)] [US: ˈmiː.di.ˌe.tər]

facilitator [facilitators]▼◼◻◻(person who helps a group to have an effective dialog without taking any side of the argument)
noun
[UK: fə.ˈsɪ.lɪ.teɪ.tə(r)] [US: fə.ˈsɪ.lə.ˌte.tər]