sclera

[skleer-uh] /ˈsklɪər ə/
noun, Anatomy
1.
a dense, white, fibrous membrane that, with the cornea, forms the external covering of the eyeball.
Origin
1885-90; < Neo-Latin < Greek sklērá (feminine) hard
British Dictionary definitions for sclera

sclera

/ˈsklɪərə/
noun
1.
the firm white fibrous membrane that forms the outer covering of the eyeball Also called sclerotic
Word Origin
C19: from New Latin, from Greek sklēros hard
Word Origin and History for sclera
n.

1886, medical Latin, from Greek sklera (menix) "the hard (membrane)," fem. of skleros "hard" (see sclerosis).

sclera in Medicine

sclera scle·ra (sklēr'ə)
n. pl. scle·ras or scle·rae (sklēr'ē)
The tough fibrous tunic forming the outer envelope of the eye and covering all of the eyeball except the cornea; the white of the eye. Also called sclerotic.

scle'ral adj.
sclera in Science
sclera
  (sklîr'ə)   
The tough, white, fibrous tissue that covers all of the eyeball except the cornea.