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retention medical definition
noun
- Involuntary withholding by the body of wastes or secretions that are normally eliminated.
- The holding by the body of what normally belongs in it, such as food in the stomach.
- An ability to recall or recognize what has been learned or experienced; memory.
- In dentistry, a period following orthodontic treatment when a patient wears an appliance or appliances to stabilize the teeth in their new position.
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