Though controversial for its abstract form, it quickly became a Chicago landmark.

Look more closely and you may see a human figure struggling to release himself from the abstract form.

It is, at the same time, a powerful abstract form.

Several artists treat the city as a source of abstract forms.

But a coupling cannot be carried out in some kind of abstract form.

Following analysis of the speech, the interpreter may write the information in abstract form.

The fact is, we don't live in a world of abstract Platonic forms.

In the later 1960s he turned to experimental and abstract forms.

"More than enough time has passed for these to be published at least in abstract form."

From all this he developed his sense for crisp line and the marriage of abstract form to reality.