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

Rush made his way to the door on the sub-level through which the man Spooner had entered the shaft.

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.

Very soon he was at the door opening on to the sub-level where his contract had been located.

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

There was no light in that sub-level, but the occupants of the cage knew exactly where they were.

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