What is Architectural Design?

Wikipedia: It is the design of buildings or urban landscapes.

Taken from: http://en.wikipedia.org/wiki/Architectural_designer

Britannica Dictionary: It is the art and technique of designing and building.

Taken from: http://www.britannica.com/EBchecked/topic/32876/architecture

Oxford Dictionary: The art or practice of designing and constructing buildings.

Taken from: http://oxforddictionaries.com/definition/architecture