joist
playSimple Definition of joist
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: a strong, heavy board that supports a floor or ceiling
Illustration of joist
Origin and Etymology of joist
Middle English giste, joiste, from Anglo-French giste, from Vulgar Latin *jacitum, from Latin jacēre to lie — more at adjacent
First Known Use: 15th century
JOIST Defined for Kids
joist
playDefinition of joist for Students
: any of the small timbers or metal beams laid crosswise in a building to support a floor or ceiling
Learn More about joist
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Spanish Central: Translation of joist Nglish: Translation of joist for Spanish speakers Britannica.com: Encyclopedia article about joist
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