EVOO is shorter  'extra virgin olive oil'. 'Extra Virgin' means no defects of smell or flavor. A single defect at the time of the harvest & press would (typically) cause the oil to be characterized as a 'virgin' olive oil as opposed to 'extra virgin'. More than 2 defects and the oils would be considered (by experienced olive oil aficionados testers) to be 'Lampante' (lamp oil).