a private form of speech invented by one child or by children who are in close contact, as twins.
a pathological condition characterized by speech so distorted as to be unintelligible.
Origin of idioglossia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a private language, as invented by a child or between two children, esp twins
a pathological condition in which a person's speech is so severely distorted that it is unintelligible
Word Origin for idioglossia
C19: from Greek idios private, separate + glossa tongue
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