say it: pur-VAY-siv
pervasive is an adjective meaning "spreading or spread throughout". It carries one recorded sense.
spreading or spread throughout
“armed with permeative irony...he punctures affectations”
“the pervasive odor of garlic”
“an error is pervasive if it is material to more than one conclusion”
Definitions, synonyms and semantic relations for pervasive come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.