Main Entry: adul·ter·ate

Pronunciation: \ə-ˈdəl-tə-ˌrāt\

Function: transitive verb

Inflected Form(s): adul·ter·at·ed; adul·ter·at·ing

: to corrupt, debase, or make impure by the addition of a foreign or inferior substance ; especially : to prepare for sale by replacing more valuable with less valuable or inert ingredients

—adul·ter·a·tor \-ˌrāt-ər\ noun