sub-excavation

Noun

Meaning

sub-excavation (plural sub-excavations)

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.

Source: en.wiktionary.org

Related terms

sub-ex sub-excavate sub-excavated

Close letter words and terms

sub-ex sub-excavate sub-excavated sub-extremal sub-floral sub-Gaussian