a door consisting of four orthogonal partitions that rotate about a central pivot; a door designed to equalize the air pressure in tall buildings an organization or institution with a high rate of turnover of personnel or membership
disapproval When you talk about a revolving door, you mean a situation in which the employees or owners of an organization keep changing. They have accepted an offer from another firm with a busy revolving door
Some large buildings have revolving doors instead of an ordinary door. They consist of four glass doors which turn together in a circle around a vertical post. As he went through the revolving doors he felt his courage deserting him
turning door, door with four sections made up of four intersecting panels that turns on an axis (usually set up in large public buildings to accommodate the entrance and exit of many people)