Definition of purify verb from the Oxford Advanced American Dictionary

     

    purify

     verb
    verb
    NAmE//ˈpyʊrəˌfaɪ//
     
    Verb Forms present simple I / you / we / they purify
     
    he / she / it purifies
     
    past simple purified
     
    -ing form purifying
     
     
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  1. 1 purify something to make something pure by removing substances that are dirty, harmful, or not wanted One tablet will purify a quart of water.
  2. 2 purify somebody/something/yourself to make someone pure by removing evil from their souls Hindus purify themselves by bathing in the river Ganges. to purify the soul
  3. 3purify something (from something) (technology) to take a pure form of a substance out of another substance that contains it
purification
 
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NAmE//ˌpyʊrəfəˈkeɪʃn//
 
noun [uncountable] a water purification plant
See the Oxford Advanced Learner's Dictionary entry: purify