Meaning of the Sanskrit Word: srotram

  srotram—the sense of hearing    SB 2.1.29, SB 2.5.31, SB 2.6.3, SB 3.26.13, SB 3.26.32
  srotram—the auditory sense    SB 3.26.47, SB 3.26.55
  srotram—ears    Bg 15.9
  srotram—the power of hearing    SB 2.10.22
  srotram—the aural sense    SB 7.12.26-28

Can't find any compound Sanskrit words containing srotram.