At eleven miles it became so dense that it was nearly impenetrable.

Overhead the foliage was so dense that the heat was not oppressive.

The smoke soon became so dense as partly to obscure the vision.

It was not easy to turn about, so dense was the crowd.

Also, the crowd inside was not so dense as at Camp Sumter.

It is inexplicable to me how a man can be so dense.

It's so dense that a bird had gotten stuck in the underbrush.

This murder was so dense with symbolism that it almost outdid interpretation.

It was so dense and dark back there, you could almost disappear.

Because water is so dense compared to air, pressure increases rapidly.

The foliage above was so dense that the moon and stars were invisible.

At the Port de Flandre the throngs were so dense they were impassable.

And their tops are so dense that the sunbeams cannot creep through them.

The darkness was so dense that their rate of progress was extremely slow.

But they had been so dense, and their thinking had been so strange.

The fog was so dense that no pursuit could be attempted.