Robinson's definition of creativity: The process of having original ideas that have value. It more often than not comes about through the interaction of different disciplinary ways of seeing things.
Here are some others, from California State University, Northridge (chosen because it was near the top in my google search for definitions of creativity):
- "creative" refers to novel products of value, as in "The airplane was a creative invention." "Creative" also refers to the person who produces the work, as in, ?Picasso was creative." "Creativity," then refers both to the capacity to produce such works, as in "How can we foster our employees' creativity?" and to the activity of generating such products, as in "Creativity requires hard work." (page 4)
- All who study creativity agree that for something to be creative, it is not enough for it to be novel: it must have value, or be appropriate to the cognitive demands of the situation."