(of an aircraft) powered by two engines, one in each wing

The process of developing memes, through meme-splicing and memetic synthesis, with the intent of altering the behavior of others in society or humanity.

The branch of engineering that deals with the design, construction and operation of industrial process plants, and the physical, chemical and biological processes to create substances or energy in a useful and economic form.

(nautical) A compartment on a ship in which the engine machinery is located. / (idiomatic) The source of power in a team or other group. / (sports) The midfield.

(computing) A mechanical general-purpose computer, designed by Charles Babbage but never built.

(computing, historical) A mechanical special-purpose computer used to generate tables of values of polynomials.

(thermodynamics) Any device which converts heat energy into mechanical work, by moving heat from a source to a sink.

A piston engine.

Any of several types of internal combustion engine in which the power output is directly rotational.

plural of ion engine