This shows grade level based on the word's complexity.
rock bolt
Save This Word!
This shows grade level based on the word's complexity.
noun Mining, Civil Engineering.
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.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Origin of rock bolt
First recorded in 1955–60
Words nearby rock bolt
rock and rye, rockaway, rock bass, rock beauty, rock blenny, rock bolt, rock boot, rock borer, rock bottom, rock-bound, rock brake
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023