/ əˈdʌltəreɪt; NAmE / verb
[ vn ] [ often passive ] adulterate sth (with sth) to make food or drink less pure by adding another substance to it
SYN contaminate
—see also unadulterated
► adul·ter·ation / əˌdʌltəˈreɪʃn; NAmE / noun [ U ]
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WORD ORIGIN
early 16th cent.: from Latin adulterat- corrupted, from the verb adulterare .