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unit process

British  

noun

  1. chemical engineering any of a number of standard operations, such as filtration or distillation, that are widely used in various chemical and process industries

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Morgan Stanley has worked to shut down or spin off trading operations that bet the bank's own money, including spinning off hedge fund FrontPoint Partners and trading unit Process Drive Trading.

From Reuters