■ noun
1》 a circumstance that complicates something; a difficulty.
↘a confused or complex state.
2》 Medicine a secondary disease or condition aggravating an already existing one.
■ noun
1》 a circumstance that complicates something; a difficulty.
↘a confused or complex state.
2》 Medicine a secondary disease or condition aggravating an already existing one.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004