Master joint

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(Geol.) a quarryman's term for the more prominent and extended joints traversing a rock mass.

See also: Master

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The first product focus selected pursuant to the Master Joint Development Agreement executed between iBio and CC-Pharming will be a therapeutic antibody, with additional, mutually selected products to be added to the venture as it proceeds.
Restaurant Brands International (RBI), which owns Tim Hortons and Burger King in Canada, announced Thursday it had signed a master joint venture agreement with Filipino investors to bring the chain to the Philippines.