feather joint

noun

Definition of feather joint

1 : a joint formed by making a mating groove in each of the contiguous pieces and inserting a feather in the opening formed when the pieces are butted together
2 : one of a set of joints that are developed by shear and tension in a zone of deformation of the earth's crust (as along a fault) and that resemble in pattern the barbs and shaft of a feather

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“Feather joint.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/feather%20joint. Accessed 11 December 2019.

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