Bridgetree, Inc. is a Fort Mill, South Carolina based company that collects data and does data analysis, related application and web programming, and logistical services. Bridgetree provides services to a variety of industries, such as retail, financial services, travel, consumer products, sports entertainment and non-profits. The company has corp...
• (n.) The beam which supports the spindle socket of the runner in a grinding mill.
Bridge'tree` noun [ Bridge + tree a beam.] (Mining) The beam which supports the spindle socket of the runner in a grinding mill. Knight. 
a beam supporting the shaft on which an upper millstone rotates.