The definition of pervasive is something that has a tendency to spread.
An example of pervasive is the Internet's spread throughout the world.
tending to pervade or spread throughout
Having the quality or tendency to pervade or permeate: the pervasive odor of garlic.
Origin of pervasiveFrom Latin pervāsus past participle of pervādere to pervade ; see pervade .
(comparative more pervasive, superlative most pervasive)