The branch of science and technology concerned with the design, building, and use of engines, machines, and structures.
Merriam-Webster Online Dictionary
engineering (noun)1.
the activities or function of an - engineer
2.
a) the application of science and mathematics by which the properties of matter and the sources of energy in nature are made useful to people
b) the design and manufacture of complex products - software engineering
3.
calculated manipulation or direction (as of behavior) - social engineering compare genetic engineering
