Definition of tamper
1a : to interfere so as to weaken or change for the worse —used with with did not want to tamper with traditionb : to try foolish or dangerous experiments —used with withc : 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)
tampererplay \-pər-ər\ noun
tamperproofplay \ˈtam-pər-ˌprüf\ adjective
TAMPER Defined for Kids
Definition of tamper for Students
: to interfere or change in a secret or incorrect way Someone was tampering with the official records.
Legal Definition of tamper
1 : to bring improper influence to bear (as by bribery or intimidation) —used with with tampered with the jurors
2 : to alter or interfere in an unauthorized or improper manner —used with with tampered with evidence
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