seepage pit: Meaning and Definition of

seep'age pit"

Pronunciation: [key]
  1. a pit that is lined with a porous, mortarless masonry wall in which effluent from a septic tank is collected for gradual seepage into the ground, sometimes used as a substitute for a drainfield.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.