engineer

n. 1 person skilled in a branch of engineering. 2 person who makes or is in charge of engines etc. (ship's engineer). 3 person who designs and constructs military works; soldier so trained. 4 contriver. v. 1 contrive, bring about. 2 act as an engineer. 3 construct or manage as an engineer. [medieval latin: related to *engine]

n. A person skilled in the principles and practice of any branch of engineering. See under Engineering, n.