oneiro-, oneir-, oniro-, onir-, -neir- (Greek: dream).euneirophrenia: 
A peaceful state of mind following a pleasant dream.
 
malneirophrenia: 
In a state of depression following a nightmare.
 
mononeirist: 
A person who claims to have dreamed just once.
 
nudoneiria: 
Persistent dreams about nudity.
 
oneirataxia: 
The inability to differentiate between dreams and reality.
 
oneiric: 
Resembling, relating to, or accompanied by dreams.
 
oneirism: 
A condition marked by a dream prolonged from sleep into a period of waking; a dreamlike hallucination in a waking conditiion; an abnormal dreamlike state of consciousness..
 
oneiroanalysis: 
The analysis of dreams as an important part of psychoanalytic treatment.
 
oneirocritic: 
A judge or interpreter of dreams.
 
oneirocritical: 
A reference to, practising , or an expert in, the interpretation of dreams.
 
oneirocriticism: 
The art of interpreting dreams.
 
oneirocriticon: 
oneirodelirium: 
Somnambulism or walking while asleep.
 
oneirodynia: 
Dreaming about painful situations, nightmares.
 
oneirogenic: 
Producing a dreamlike state; capable of causing dreams.
 
oneirogmus: 
Dreaming of sexual subjects accompanied by emission of semen; also know as "wet dreams".
 
oneiroid: 
Resembling a dream; like a dream.
 
oneirologist: 
A specialist in oneirology or the study and interpretation of dreams.
 
oneirology: 
The scientific study of dreams.
 
oneiromancy: 
Divination or fortune-telling by dreams.
 
oneiromantic, oneiromancer: 
Someone who divines by dreams.
 
oneiromimetic: 
Resembling a dream as a partly forgotten experience.
 
oneironaut: 
Someone who is said to realize that he/she is dreaming while in a dream. 
 
oneironosus: 
oneirophobia: 
A fear of having dreams.
 
oneirogmophobia: 
A fear of having wet dreams.
 
oneirophrenia: 
 1. A state in which hallucinations occur, caused by such conditions as prolonged deprivation of sleep, sensory isolation, and a variety of drugs.  
2. A form of schizophrenia characterized by a clouding of the consciousness. oneirorgia: 
Dreams of sexual intercourse.
 
oneirogmus: 
Nocturnal emission of semen, usually related to erotic dreams; an effusion of semen during sleep.
 
oneiropornism: 
Fantasizing about sex or prostitutes while dreaming.
 
oneiroscopist: 
A specialist in the analysis of dreeams.
 
oneiroscopy: 
Analysis of dreams as an aid in diagnosis of mental or other disorders.
 
oniric: 
Pertaining to or resembling a dream.
 
onirogenic: 
Giving rise to a dreamlike state.
 
oniroid: 
Like or resembling a dream.
 
paroneiria, paroniria: 
Morbid dreaming; disagreeable or terrifying dreams.
 
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