Neologism
Pronunciation : Ne*ol"o*gism
Part of Speech : n.
Etymology : [Cf. F. n?ologisme.]
Definition : 1. The introduction of new words, or the use of old words in a new sense. Mrs. Browning.
2. A new word, phrase, or expression.
3. A new doctrine; specifically, rationalism.
Source : Webster's Unabridged Dictionary, 1913