- an entrance door for excluding drafts from the interior of a building, usually consisting of four rigid leaves set in the form of a cross and rotating about a central, vertical pivot in the doorway.
- Informal.
- a company, institution, or organization with a high turnover of personnel or members.
- a legal, medical, or other system or agency that discharges criminals, patients, etc., in the shortest possible time and without adequate attention or consideration.
- a door that rotates about a central vertical axis, esp one with four leaves arranged at right angles to each other, thereby excluding draughts
- a tendency to change personnel on a frequent basis
- (as modifier)
- the hiring of former government employees by private companies with which they had dealings when they worked for the government
- (as modifier)