Triturate

trit·u·rate (trĭch'ə-rāt') [v. trich-uh-reyt; n. trich-er-it]
tr.v. trit·u·rat·ed, trit·u·rat·ing, trit·u·rates
To rub, crush, grind, or pound into fine particles or a powder; pulverize.
n. (-ər-ĭt)
A triturated substance, especially a powdered drug.