Meaning of the Sanskrit Word: patalam

  paṭalam—mass    SB 3.14.27
  pātālam—the planets at the bottom of the universe    SB 2.1.26
  pātālam—the seventh planetary system below    SB 2.5.40-41
  pātālam—Pātāla    SB 5.24.7

Can't find any compound Sanskrit words containing patalam.