sub-excavation

English

Alternative forms

  • subexcavation

Etymology

From sub- +‎ excavation.

Noun

sub-excavation (plural sub-excavations)

  1. An excavation underneath something, or the excavation of a subgrade
    We were grading the road and found a soft spot where we did a sub-excavation.
  • sub-ex (short form)
  • sub-excavate
  • sub-excavated