noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A tool employing a chamber with a colored liquid (usually alcohol, hence spirit) and an air bubble, used to determine a horizontal or vertical reference line.
2. 2
   indicator that establishes the horizontal when a bubble is centered in a tube of liquid wordnet

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compassdirection findergaugeinstrumentlevelleveler

Antonyms

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