demarcation

No very definite line of demarcation, however, can be drawn.

The line of demarcation was not, and perhaps could not be, drawn with precision.

Yes, sir; there is a line of demarcation set up in the Constitution.

I went in to try to get the line of demarcation between an inventor and a composer.

In England there were no such recognizable lines of demarcation.

This range is a line of demarcation in ethnology as well as politics.

The line of demarcation so well established would be broken.

The world does not draw lines of demarcation where women are concerned.

There is no line of demarcation between the noumenal and phenomenal.

When I had finished, he offered quietly to accompany us to the line of demarcation.