Advertisement

Dictionary


rock' bolt"



Mining, Civ. Engin.
a steel or fiberglass bolt inserted and anchored in a hole drilled in rock to prevent caving of the roof of a tunnel or subterranean chamber.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

rock blennyrock bottom

Related Content


Advertisement

Play Hangman

Play Poptropica

Play Same Game

Try Our Math Flashcards