since when biologists are engineers? you dont design any machin you only study them if we consider live cells and bodies as machines and systems.I'm an engineer, but the Dutch name comes from the Latin ingenium. The English term comes from the word engine. In my case it would mean "an intellectual who uses his/her scientific knowledge to solve practical problems", the other meaning is "a person trained and skilled in the design, construction, and use of engines or machines, or in any of various branches of engineering". I wouldn't say the latter is a scientist, is an architect a scientist?