Today it stands at 9 5/16 percent following barely perceptible increases as the week began.

He noted a perceptible increase in the speed of things about him.

They noticed perceptible increases in their "intensity" and their ability to give "110 percent."

Nevertheless, to my surprise, we found no perceptible increase in heat.

On the East Coast, where it was torrid, the use of television showed no perceptible increase.

Consequently, in the late sixties the village began to witness a perceptible increase in population.

"There's no perceptible increase in the outflow," said Dr. Major, the hydrologist.

There is a slight but clearly perceptible increase in the birth rate in the summer months.

At once there was a perceptible increase to the speed of the Advance.

There has been a perceptible increase in the number of people snapping gum and unwrapping cellophane-wrapped candies while watching a show.