Its bulk was concentrated in the middle, with a small aperture at the very center.
For an instant, the open door showed a small aperture.
For this reason low light or small apertures are required.
She pulled the door open a few inches and pushed her face to the small aperture.
There was a very small aperture in the wall facing him.
"I wanted to find one small aperture, which stands for the whole beast," he said.
A small aperture is left, through which the male passes food.
He stepped through the small aperture and the panel closed behind him.
On hands and knees, he crawled through the small aperture.
In his moon face the mouth was a small aperture.