Tamper

n. 1. One who tamps, or prepares for blasting, by filling the hole in which the charge is placed. 2. An instrument used in tamping; a tamping-iron.

v. i. [imp. & p. p. TAMPERED; p. pr. & vb. n. TAMPERING.] [A modification of temper, q. v.] 1. To meddle; to be busy; to try little experiments; as, to tamper with a disease. 'Tis dangerous tampering with a muse. Roscommon. 2. To deal; to practice secretly; to use bribery. Others tampered For Fleetwood, Desborough, and Lambert. Hudibras.