excavate

Short definition from Wiktionary

Verb

1. 1
   To make a hole in (something); to hollow.
2. 2
   To remove part of (something) by scooping or digging it out.
3. 3
   To uncover (something) by digging.

Adjective

1. 1
   Made hollow.
2. 2
   excavated, hollowed out

Noun

1. 1
   Any member of a major grouping of unicellular eukaryotes, of the clade Excavata.