[ noun ] a recreation room for noisy activities (parties or children's play etc) <noun.artifact>
Most popular were top-ranked Power Alley Electronic Bowling by Marchon, an electronic extravaganza designed to turn a playroom into a bowling alley, and the Sound Machine Water Cannon fire engine by Nylint.
Ms. Snidman said in an interview that the scientists determined which children were extremely shy and which were outgoing by observing their response to novel situations in a playroom.