#megabyte__Megabyte__Mb__MB  a unit of information equal to one million (1,048,576) bytes
  supertype:  computer_memory_unit  a unit for measuring computer memory
  part:  kilobyte
  part of:  gigabyte__Gigabyte__G__Gb__GB  a unit of information equal to one billion (1,000,000,000) bytes or one thousand megabytes
     part of:  terabyte__Terabyte__T__Tb__TB  a unit of information equal to one trillion (1,000,000,000,000) bytes

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