How Do You Define "schizophrenic?"?

A schizophrenic is an individual who suffers from schizophrenia, a type of mental disorder depicted by delusions, hallucinations, social isolation, and disorganized speech and behavior, according to The word "schizophrenia" derives from the Greek words "skhizein," meaning "to split," and "phren," meaning "mind," notes the Online Etymology Dictionary.

Though the word means "split mind," the disease actually alludes to the disruption in the normal balance of thinking and emotions, not having split or multiple personalities, explains Mayo Clinic. Causes of schizophrenia include genetic inheritance, environmental factors, and having a different brain chemistry or structure, according to the National Institute of Mental Health.