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operating exposure
operating income
operating lease
operating leverage
operating microscope
operating risk
operating room
operating system
operating table
operating theatre
operation
operational
operational amplifier
operational area
operational audit
operational research
operationalism
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operator

op·er·a·tor [ óppə ràytər ] (plural op·er·a·tors)


noun 
Definition:
 
1. somebody operating something: somebody who operates machinery, an instrument, or other equipment

2. business owner or manager: an owner or manager of a business or other commercial enterprise

3. stock-exchange dealer: a dealer on the stock exchange or in a money market, especially somebody who is aggressive or speculative

4. manipulative person: somebody who behaves in a devious or manipulative way, especially in order to gain something ( informal )
a smooth operator

5. mathematics comput something effecting mathematical operation: a mathematical symbol, term, or other entity that performs or describes an operation, e.g. a multiplication or subtraction sign

6. soldier: a member of the U.S. Army Special Forces

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