psycho

Từ điển Oxford Advanced Learner 8th

▪ I. psy·cho [psycho psychos] BrE [ˈsaɪkəʊ] NAmE [ˈsaɪkoʊ] noun (pl. psy·chos)(informal)
a person who is mentally ill and who behaves in a very strange violent way
•In his new film, he plays the part of a crazed psycho.
•Don't let him drive— he's a complete psycho behind the wheel!

Word Origin:
1930s: abbreviation.
 
▪ II. psy·cho adjective
Main entry: ↑psycho_derived

• Từ đồng nghĩa / Synonyms:
  psychotic, psychotic person