sclera

The tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea.

The sclerotic coat of the eyeball.

The test of the crustaceans, especially those parts of the test which separate the corneal lenses in aggregated schizochroal eyes.

The white of the eye. It is the tough outer coat of the eye that covers the eyeball except for the cornea.

the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball