pl. -·ras or -·rae
the tough, fibrous, white membrane covering all of the eyeball except the area covered by the cornea
Origin of scleraModern Latin ; from Classical Greek skl?ros, hard ; from Indo-European base an unverified form (s)kel-, to dry out from source shallow
The tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea. Also called sclerotic, sclerotic coat.
Origin of scleraNew Latin, from Greek, feminine of skl&emacron;ros, hard.
(plural scleras or sclerae or sclerÃ¦)
Borrowing from Ancient Greek ÏƒÎºÎ»Î·ÏÏŒÏ‚ (sklÄ“ros) ("hard").