trituration

[trich-uh-rey-shuh n] /ˌtrɪtʃ əˈreɪ ʃən/
noun
1.
the act of triturating.
2.
the state of being triturated.
3.
Pharmacology.
  1. a mixture of a medicinal substance with sugar of milk, triturated to an impalpable powder.
  2. any triturated substance.
Origin
1640-50; < Late Latin trītūrātiōn- (stem of trītūrātiō), equivalent to trītūrāt(us) threshed (see triturate) + -ion -ion
British Dictionary definitions for trituration

trituration

/ˌtrɪtjʊˈreɪʃən/
noun
1.
the act of triturating or the state of being triturated
2.
(pharmacol) a mixture of one or more finely ground powdered drugs
trituration in Medicine

trituration trit·u·ra·tion (trĭch'ə-rā'shən)
n.
The process of reducing a substance to a fine powder.