roofbolt

English

Etymology

From roof +‎ bolt.

Noun

roofbolt (plural roofbolts)

  1. (mining) A safety bolt installed in the roof of an underground mine.

Verb

roofbolt (third-person singular simple present roofbolts, present participle roofbolting, simple past and past participle roofbolted)

  1. (mining) To install safety bolts in the roof of an underground mine.
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