roofbolt

English

Etymology

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.

Related terms

• roofbolter