Definition of "lab"

I was working in the lab late one nightWhen my eyes beheld an eerie sightFor my monster, from his slab, began to riseAnd suddenly, to my surpriseHe did the MashHe did the Monster Mash.

1962, “Monster Mash”, Bobby "Boris" Pickett and Lenny Capizzi (lyrics), performed by Bobby (Boris) Pickett and The Crypt-Kickers

A man dressed as a lab tech, his blue scrubs startlingly pale against the vivid red and black chaos, moved into sight from behind the SUV. He carried an assault rifle.

2014, Jeff Jacobson, Growth, page 23