/skit"soyd/ , adj.
1. Psychol. of or pertaining to a personality disorder marked by dissociation, passivity, withdrawal, inability to form warm social relationships, and indifference to praise or criticism.
2. Informal. of or pertaining to schizophrenia or to multiple personality.
n.
3. a schizoid person.
[ 1920-25; SCHIZ- + -OID ]