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flying buttress

noun

Simple Definition of flying buttress

  • : a structure that supports a wall or building from the outside

Source: Merriam-Webster's Learner's Dictionary

Full Definition of flying buttress

  1. :  a masonry structure that typically consists of a straight inclined bar carried on an arch and a solid pier or buttress against which it abuts and that receives the thrust of a roof or vault

Illustration of flying buttress

1669

First Known Use of flying buttress

1669


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