Schizophrenia - A serious mental illness characterized by the presence of hallucinations, delusions, disorganized speech or thinking, a loss of contact with reality, and a noticeable deterioration of functioning in everyday life.⏎
Sperm Cell - The male gamete, or sex cell, which carries the hereditary material of the male parent and unites with the female egg cell during sexual reproduction.⏎
Virus - An infectious agent that is only capable of replicating itself inside the living cells of other organisms.⏎
Tissue Culture - The process by which tissues are intentionally grown under controlled conditions.⏎