• Webster's Revised Unabridged Dictionary
    • a Sclerotal (Anat) Sclerotic.
    • ***
Century Dictionary and Cyclopedia
    • sclerotal Having the character of, or pertaining to, a sclerotal: distinguished from sclerotic.
    • sclerotal Same as sclerotic.
    • n sclerotal In zoology, a bone of the eyeball; one of a number of scleroskeletal ossifications developed in the sclerotic coat of the eye, usually consisting of a ring of small flat squarish bones encircling the cornea, having slight motion upon one another, but collectively stiffening the coat of the eye and preserving the peculiar shape which it has, as in an owl, for instance. In birds the sclerotals are usually from twelve to twenty in number.
    • n sclerotal Same as sclerotica.
    • ***
Chambers's Twentieth Century Dictionary
    • Sclerotal a bone of the eye-ball
    • ***


Chambers's Twentieth Century Dictionary
Gr. sklēros, hard.


In literature:

The eye is not affected; but in a negro the sclerotic generally appears muddy.
"Anomalies and Curiosities of Medicine" by George M. Gould
These coats are the sclerotic, the choroid, and the retina.
"A Practical Physiology" by Albert F. Blaisdell
The albuginea or sclerotic 3.
"Gilbertus Anglicus" by Henry Ebenezer Handerson
Sclerotic, retina, choroid, vitreous humour, lens, aqueous humour, all are present.
"On the Genesis of Species" by St. George Mivart
The eye (Figure 8) has a tough, dense, outer coat, the sclerotic (sc.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
Unfortunately, the pigment is often so abundant in the anterior part of the sclerotic as to hide this symptom.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
It is distinguished from the sclerotic by being colorless and transparent.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
The SCLEROTIC COAT is a dense, fibrous membrane and invests about four fifths of the globe of the eye.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
Then the threads are knotted on the muscle, and the insertion is separated from the sclerotic.
"Schweigger on Squint" by C. Schweigger
The cornea is quite continuous with the sclerotic but has a greater convexity.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1" by Various

In news:

These aren't good times for communitarian ideals, either in politics — with our sclerotic, shout-louder-than-the-next-asshole punditocracy — or in music, where the landscape is dominated by the indulgences of solo artists.
Osteoid osteomas can be easily identified radiologically by the presence of a central nidus surrounded by dense sclerotic bone on computed tomography (CT).