Underground laboratory Synonyms

Underground replaced

Definitions for Underground


  • (adjective) undertaken or done so as to escape being observed or known by others
  • (adjective) being, situated, or operating beneath the surface of the earth
  • (noun) a secret organization in a conquered country fighting against enemy forces

Synonyms for phrase

UL abbreviation

UL is an abbreviation for Underground Laboratory
What does UL stand for?
UL stands for "Underground Laboratory"

Laboratory replaced

Definitions for Laboratory


  • (noun) a workplace for the conduct of scientific research
  • (noun) a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation