Word of the Week - Neologism

ne·ol·o·gism   (n-l-jzm)

n.

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.

Source: Dictionary.com