spirit level
also spirit-level
Word forms: plural spirit levels
countable noun
A spirit level is a device for testing to see if a surface is level. It consists of a plastic, wood, or metal frame containing a glass tube of liquid with an air bubble in it.
spirit level in British English
noun
a device for setting horizontal surfaces, consisting of an accurate block of material in which a sealed slightly curved tube partially filled with liquid is set so that the air bubble rests between two marks on the tube when the block is horizontal
spirit level in American English
level (sense 1)
Image ofspirit level
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