window

(win′dō″ )

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1. An aperture for the admission of light or air or both.
2. A small aperture into a cavity, esp. that of the inner ear.
SYN: SEE: fenestra
3. A period after acute infection when neither the cause of the infection nor antibodies against it can be detected in blood or body fluids.
4. In echocardiography, an imaging view of a body structure.

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