trit·u·rate 
(trĭchə-rāt′)
(trĭchə-rāt′)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.
[Late Latin trītūrāre, trītūrāt-, to thresh, from Latin trītūra, a threshing, from trītus, past participle of terere, to thresh; see terə-1 in the Appendix of Indo-European roots.]
tritu·ra·ble adj.
tritu·ra′tor n.