(anatomy) The white of the eye; the tough outer coat of the eye that covers the eyeball except for the cornea.

(anatomy) Of or relating to the sclera of the eye. / (anatomy or pathology) Having or relating to sclerosis; hardened. / (figuratively) Hard and insular; resistant to change.

(anatomy) Synonym of sclera

(pathology) A chronic disease of the brain and spinal cord characterized by changes in sensation, visual problems, weakness, depression, difficulties with coordination and speech, impaired mobility and disability.

(pathology) The abnormal hardening of body tissues, such as an artery. / Inability to create change or excessive resistance to change.

(neurology, pathology) A chronic, progressive disease characterized by degeneration of the central nervous system and the loss of voluntary muscle control.

Dated form of Slavonic.

Dated form of Slavonic.

(anatomy) Of, or pertaining to, the sclera.

(pathology, optometry) An opacity of the cornea that progresses inwards from the periphery of the cornea towards its center.