Noun lab has 1 sense
  1. lab, laboratory, research lab, research laboratory, science lab, science laboratory - a workplace for the conduct of scientific research
    --1 is a kind of workplace, work
    --1 has parts: lab bench, laboratory bench
    --1 has particulars:
     biology lab, biology laboratory, bio lab; chemistry lab, chemistry laboratory, chem lab; defense laboratory; physics lab, physics laboratory