Meaning of the Sanskrit Word: brahmavadibhih

  brahmavadibhih—by greatly learned impersonalist scholars    SB 6.7.2, SB 6.7.3, SB 6.7.4, SB 6.7.5, SB 6.7.6, SB 6.7.7, SB 6.7.8, SB 6.7.2-8
  brahmavadibhih—by the followers of Vedic civilization    SB 7.10.23

Can't find any compound Sanskrit words containing brahmavadibhih.