1a person who designs, builds, or maintains engines, machines, or structures. a person qualified in a branch of engineering, especially as a professional:an aeronautical engineer 2a person who controls an engine, especially on an aircraft or ship. North American a train driver.
3a skilful contriver or originator of something:the prime engineer of the approach 1design and build (a machine or structure):the men who engineered the tunnel modify (an organism) by manipulating its genetic material: (as adjective, with submodifier engineered)genetically engineered plants
2skilfully arrange for (something) to occur:she engineered another meeting with him