All 7 Uses

laboratory
in
Perfect Chemistry
(Auto-generated)

The room is arranged with rows of high lab tables for two.†

lab = a workplace where people do scientific or medical research, or produce drugs or chemicals (also used figuratively) OR (as an adjective) related to such a place
She stands in front of the first lab table and says, "Colin Adams, take the first seat.†
I lean an elbow on the lab table, waiting for an introduction she has to either make up or fess up she knows less than crap about me.†
I slide onto the stool and push it as close to the lab table as possible, hiding the stain.†
Put them back on the lab table.†
While I silently curse Mrs. P. for not having a lab day with experiments so we can talk, I glance over at my partner.†
*
Back in class, Brittany lays her head on the lab table as she scribbles answers.†

Definitions:

(1) (laboratory)
a workplace where people do scientific or medical research, or produce drugs or chemicals

or (as an adjective): related to such a place
(2) (meaning too rare to warrant focus)
Much more rarely, lab can be used as an abbreviated way of saying Labrador retriever. It is also a rare last name and may indicate someone's initials.