[n] the act or process of complicating
[n] puzzling complexity
[n] a development that complicates a situation; "the court's decision had many unforeseen ramifications"
[n] a situation or condition that is complex or confused; "her coming was a serious complication"
[n] any disease or disorder that occurs during the course of (or because of) another disease; "bed sores are a common complication in cases of paralysis"