sub-level

American  

[suhb-lev-uhl] / ˈsʌbˌlɛv əl /

noun

Mining.

1. a drift, dug through ore, into which overlying material, especially from an upper layer of ore, is caved.

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Example Sentences

This sub-level is more than a place; it's a mental state.

From The Guardian • Dec. 18, 2012

We found a fuse on the first sub-level near the shaft, but of course that doesn't prove anything.

From The Iron Boys in the Mines or, Starting at the Bottom of the Shaft by Mears, James R.

"Jarvis, were you absent from sub-level number seventeen at any time during the day?"

From The Iron Boys in the Mines or, Starting at the Bottom of the Shaft by Mears, James R.

In his miner's outfit, with a green candle stuck in the holder on his hat, he had hurried down into the mine and made his way quickly to the sub-level where the accident had occurred.

From The Iron Boys in the Mines or, Starting at the Bottom of the Shaft by Mears, James R.

"Come on up to the sub-level; we will begin our investigation there."

From The Iron Boys in the Mines or, Starting at the Bottom of the Shaft by Mears, James R.