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n.
a surgical incision into the abdominal cavity. The operation is done to examine the abdominal organs as a help to diagnosis; for example, to establish the spread of a tumour (exploratory laparotomy) or as a prelude to major surgery, for example in abdominal trauma.
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lap·a·rot·o·my (lap″ə-rotґə-me) [laparo- + -tomy] surgical incision into the abdominal cavity. Called also celiotomy and peritoneotomy.Medical dictionary. 2011.