a workplace for the conduct of scientific research | a part of an animal that has a special function or is supplied by a given artery or nerve |
a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation | a knowledge domain that you are interested in or are communicating about |
| the extended spatial location of something |
| a large indefinite location on the surface of the Earth |
| the approximate amount of something (usually used prepositionally as in `in the region of') |