ball mill

noun

Definition of ball mill 

: a pulverizing machine consisting of a rotating drum which contains pebbles or metal balls as the grinding implements

Examples of ball mill in a Sentence

Recent Examples on the Web

Noisy tumblers known as ball mills operate almost continually in mining communities, often next to homes, grinding the ore along with mercury and water to extract the gold. National Geographic, "The Toxic Toll of Indonesia's Gold Mines," 24 May 2016 For 15 years, Resti's family has operated a ball mill just outside the kitchen door. National Geographic, "The Toxic Toll of Indonesia's Gold Mines," 24 May 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ball mill.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ball mill

1884, in the meaning defined above

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The first known use of ball mill was in 1884

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