Definition of tamper
tampered;
tampering
play
\-p(ə-)riŋ\
intransitive verb
1 a
:to interfere so as to weaken or change for the worse
—used with with
- did not want to tamper with tradition
b
:to try foolish or dangerous experiments
—used with with
c
:to render something harmful or dangerous by altering its structure or composition
- was charged with tampering with consumer products
2
:to carry on underhand or improper negotiations (as by bribery)
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