My doors is dark enough without your darkening of 'em more.

May eventually cause permanent darkening of the iris to brown.

A general darkening of the skin unrelated to sun exposure.

There was a brief darkening of the light and then a sudden flare.

A further darkening of the sky by a shade.

A sudden darkening of the concrete around him made him look up.

The cold and disorientation were bad enough, but what now began to trouble him more was a subtle darkening of the sky.

A blemish appeared on the woman's face, a mere darkening of the skin, but it grew.

The penumbra causes a subtle darkening of the Moon's surface.

Or perhaps it was a peculiar darkening of the window, which though ever so slight, had caught Pete's tense attention.

Up went one red-gold brow, its darkening of stibium long gone.

Mala just goes pale when she's anxious, with slight darkening of her eyes.

Treatment relieves symptoms and usually reverses any darkening of the skin.

His smile didn't waver, but Caroline could see the sudden darkening of the pale eyes.

Most characteristic is a gradual darkening of the skin and mucous membranes.

Anger showed in the sudden darkening of Martinho's face.

A slight darkening of the medication is expected, but any enemas that turn dark brown should be discarded.

This explains the gradual but slight darkening of the eyes as a bird matures.

There was a sudden darkening of the room, a flutter of all the many candles.

The momentary darkening of her features told him, clearly, what the hedge meant to her.

But lyrical in Taylor does not mean light, and even the progressive darkening of atmosphere is implied at the start.

Radiographic density is the measure of overall darkening of the image.

It was, after all, nothing more than a slight darkening of the green-blue sky to a whitish gray.

A normal darkening of color may occur.

The term industrial melanism refers to the genetic darkening of species in response to pollutants.

Her face darkened, and she looked away from him for a moment.

The light was on in his office as the day outside the window darkened.

Then his face darkened, and he turned her so that she had to look at him.

He turned away from the window, and I saw that his eyes had darkened.

Almost a week later, his eyes darkened at the memory.

When she darkened the rest of her skin, it looked fine.

However, the wood seems to have darkened over the years.

Then the room darkened, and she looked up knowing what she'd see.

See where the skin is darkened there over your eyes.

The windows were darkened so no one could see in.

Only soon the weather darkened, and all around became the same color as the water.

American relations with Europe have also been darkened by the war.

The spaces where her eyes were darkened even more than before.

When he made love to her, they would darken even more.

Death came between them, darkening their understanding of how things were.

Long, straight hair like her mother's, darkened by the water.

The city darkened as lights went out in one window after another.

The little light inside the car had lit and darkened.

Then his face darkened with something very close to anger.

The man's face darkened, and the little girl was suddenly afraid.

But after a few days, the eyes of the child darken.

The old man had done something to darken his hair.

Her face darkened and she pulled back from his touch.

As the door closed, the room darkened, for there was no window.

He wanted to see if the lines under his eyes were darkening.