|1.||a condition, event, etc, that is complex or confused|
|2.||the act or process of complicating|
|3.||a situation, event, or condition that complicates or frustrates: her coming was a serious complication|
|4.||a disease or disorder arising as a consequence of another disease|
complication com·pli·ca·tion (kŏm'plĭ-kā'shən)
A pathological process or event occurring during a disease that is not an essential part of the disease; it may result from the disease or from independent causes.