Wikipedia
Ideal type
Ideal type , also known as pure type, is a typological term most closely associated with sociologist Max Weber (1864–1920). For Weber, the conduct of social science depends upon the construction of abstract, hypothetical concepts. The "ideal type" is therefore a subjective element in social theory and research, and one of the subjective elements distinguishing sociology from natural science.
Usage examples of "ideal type".
The Deity, in this operation, could not act but according to the ideas existing in his intelligence: their union filled this, and formed the ideal type of the world.
The contour of his head and the perfect regularity of rather large features made him an ideal type for the screen at any angle.