com ‧ pli ‧ ca ‧ tion /ˌkɒmpləˈkeɪʃ ə n, ˌkɒmplɪˈkeɪʃ ə n $ ˌkɑːm-/ BrE AmE noun
[ Word Family: verb : ↑ complicate ; noun : ↑ complication ; adjective : ↑ complicated ≠ UNCOMPLICATED ]
1 . [uncountable and countable] a problem or situation that makes something more difficult to understand or deal with:
The fact that the plane was late added a further complication to our journey.
2 . [countable usually plural] medical a medical problem or illness that happens while someone is already ill and makes treatment more difficult:
Pneumonia is one of the common complications faced by bed-ridden patients.