These get between the skin cells, loosening the outermost layer, enabling them to fall off more readily.

Light reflects off the chair and into the eye, first through the cornea, the outermost layer.

The probe will give the closest view yet of a star as it dives through the sun's corona, the outermost layer of its atmosphere, which can be 1.66 million centigrade.

This outermost layer of the cerebellar cortex also contains two types of inhibitory interneurons, stellate cells, and basket cells.

Their body-wall muscles are disposed in four layers, alternately circular and length-wise starting from the outermost layer.