1. A new word, expression, or usage.
2. The creation or use of new words or senses.
3. Psychology.
   1. The invention of new words regarded as a symptom of certain psychotic disorders, such as schizophrenia.
   2. A word so invented.
4. Theology. A new doctrine or a new interpretation of scripture.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.