Noun
professional engineer (plural professional engineers)
An engineer who holds a license granted by a regulatory body of engineering.
Most commonly titled Professional Engineer is a license to practice and is indicated with the use of post-nominal letters ; PE or P.Eng. These are common in North America, as is European Engineer ( Eur Ing ) in Europe. Source: Internet
In some parts of the US such as Texas, the use of the term Engineer is regulated by law and reserved only for use by individuals who have a Professional Engineer license. Source: Internet
He was a registered Professional Engineer and a member of the Institute of Electrical and Electronic Engineers. Source: Internet