Word Study
    antozone
CIDE DICTIONARY
antozone, n. [Pref. anti- + ozone.]. 
                                            
                                         A compound formerly supposed to be modification of oxygen, but now known to be hydrogen dioxide; -- so called because apparently antagonistic to ozone, converting it into ordinary oxygen.                                                                                 [1913 Webster]                                                                                                                    
                                                                                    
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