/ pəˈveɪsɪv; NAmE pərˈv-/ adjective
existing in all parts of a place or thing; spreading gradually to affect all parts of a place or thing :
a pervasive smell of damp
A sense of social change is pervasive in her novels.
► per·va·sive·ly adverb
► per·va·sive·ness noun [ U ]
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WORD ORIGIN
mid 18th cent.: from Latin pervas- passed through (from the verb pervadere ) + -ive .