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n. the technique of examining a fluid-filled part of the body to detect a floating object. During pregnancy, a sharp tap with the fingers, applied to the uterus through the abdominal wall or the vagina, causes the fetus to move away and then return to impart an answering tap to the examiner’s hand as it floats back to its original position. This confirms that swelling of the uterus is due to a fetus rather than a tumour or other abnormality.

Subjects: Medicine and Health.

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