|a sequence of machines, tools, operations, workers, etc, in a factory, arranged so that at each stage a further process is carried out|
|the offspring of a zebra and a donkey.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
A line of factory workers and equipment along which a product being assembled passes consecutively from operation to operation until completed.
Note: Assembly lines are found in many industries but are particularly associated with automobile manufacturing.