There is always a gradual change from the densest part of the chemical+water to the very dilute water.

He went in a wide circle through the densest part of the forest, crossing the same stream twice.

They came to a long straight lane through the densest part of the woods.

The middle should have been the densest part of the swarm; but it wasn't.

There's even sections with "discussion questions" to help you through the denser parts.

The fires would then continue till the denser parts of the forest were burned out, or until a rain fell.

The densest parts of the negative require more exposure.

"At a near-capacity rate, since we entered the denser part of the cluster."

"Let's try and find the densest part of this underbrush," he said.

It has been estimated that up to 8% of the country is covered by forest, with the densest parts in the south.