<p><strong>Noun</strong></p><ul><li>the act of complicating.</li><li>a complicated or involved state or condition.</li><li>a complex combination of elements or things.</li><li>something that introduces, usually unexpectedly, some difficulty, problem, change, etc.: Because of the complications involved in traveling during the strike, we decided to postpone our trip.</li><li>Synonyms: obstacle, handicap, drawback.</li><li>Pathology: a concurrent disease, accident, or adverse reaction that aggravates the original disease.</li><li>the act of forming a unified idea or impression from a number of sense data, memories, etc.</li></ul>