OPOSSUMS ARE MARSUPIALS. If you open just about any field guide to North American mammals, the opossum will probably be the very first of the 380 or so mammal species described. That's because opossums are our only marsupial, and marsupials are considered very ancient forms of mammals.
operator - an agent that operates some apparatus or machine; the operator of the switchboard. manipulator. causal agency, causal agent, cause - any entity that produces an effect or is responsible for events or results. company operator - an operator who works for a company. driver - the operator of a motor vehicle.
A production operator, also known as a machine operator, uses equipment to assist with manufacturing, packaging, and other steps along a production line. While the exact duties may vary from company to company, a production operator may be expected to handle heavy machinery such as forklifts. On-the-job training may be available.