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hebephrenia

[hee-buh-free-nee-uh]
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noun Psychiatry.

a type of schizophrenia characterized by emotionless, incongruous, or silly behavior, intellectual deterioration, and hallucinations, frequently beginning insidiously during adolescence.

Origin of hebephrenia

1880–85; < Greek hēbē- (see hebetic) + -phrenia
Related formshe·be·phren·ic [hee-buh-fren-ik] /ˌhi bəˈfrɛn ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for hebephrenia

hebephrenia

noun

a form of pubertal schizophrenia, characterized by hallucinations, delusions, foolish behaviour, and senseless laughter
Derived Formshebephrenic (ˌhiːbɪˈfrɛnɪk), adjective

Word Origin for hebephrenia

C20: New Latin, from Greek hēbē youth + -phrenia mental disorder, from phrēn mind
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for hebephrenia
n.

"adolescent insanity," 1886, coined in Modern Latin by German psychiatrist Ewald Escker in 1871, from Greek hebe "youth" (see Hebe (1)) + phrene "mind" (see phreno-).

Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for hebephrenia

hebephrenia

[hē′bə-frē′nē-ə, -frĕn′ē-ə]

n.

A schizophrenia, usually starting at puberty, characterized by foolish mannerisms, senseless laughter, delusions, hallucinations, and regressive behavior.disorganized schizophrenia hebephrenic schizophrenia
Related formshe′be•phren′ic (-frĕn′ĭk, -frē′nĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.