[me.di.a.tor] n [ME, fr. LL, fr. mediare] (14c) 1: one that mediates; esp: one that mediates between parties at variance
2: a mediating agent in a physical, chemical, or biological process
[me.di.a.tor] n [ME, fr. LL, fr. mediare] (14c) 1: one that mediates; esp: one that mediates between parties at variance
2: a mediating agent in a physical, chemical, or biological process
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012