neu ‧ ro ‧ sis /njʊˈrəʊsəs, njʊˈrəʊsɪs $ nʊˈroʊ-/ BrE AmE noun ( plural neuroses /-siːz/) [uncountable and countable] medical
a mental illness that makes someone unreasonably worried or frightened
neu ‧ ro ‧ sis /njʊˈrəʊsəs, njʊˈrəʊsɪs $ nʊˈroʊ-/ BrE AmE noun ( plural neuroses /-siːz/) [uncountable and countable] medical
a mental illness that makes someone unreasonably worried or frightened
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012