Dangerous buildup in a mine (7 letters) — Crossword Helper

Enter a clue or pattern or both:

The Clue

Dangerous buildup in a mine (7 letter answer)

The Answer

METHANE

Tags

buildup ch4 coal concern constituent dangerou essentially gas marsh methane mine miner natural

Notes

The answer METHANE is rarely seen, appearing only about once every 1500 puzzles.

Related Clues

Ch4
It's a gas!
Marsh gas
Marsh gas constituent
Marsh gas, essentially
Natural gas constituent
Coal miner's concern

Definition

METHANE as a noun:

1. a colorless odorless gas used as a fuel