Astyllen definitions

Astyllen

• (n.) A small dam to prevent free passage of water in an adit or level.
Found on http://thinkexist.com/dictionary/meaning/astyllen/

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Astyllen

A·styl'len noun (Mining) A small dam to prevent free passage of water in an adit or level.
Found on http://www.encyclo.co.uk/webster/A/137

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