Dictionary
ex•tra•ne•ous
Pronunciation: (ik-strā'nē-us), [key]—
adj.
1. introduced or coming from without; not belonging or proper to a thing; external; foreign:
extraneous substances in our water.
2. not pertinent; irrelevant:
an extraneous remark; extraneous decoration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.