\Scle*rot"ic\, a. [Gr. sklhro`s hard: cf. F.
scl['e]rotique.]
1. Hard; firm; indurated; -- applied especially in anatomy to
   the firm outer coat of the eyeball, which is often
   cartilaginous and sometimes bony.
2. (Anat.) Of or pertaining to the sclerotic coat of the eye;
   sclerotical.
3. (Med.) Affected with sclerosis; sclerosed.
{Sclerotic parenchyma} (Bot.), sclerenchyma. By some writers
   a distinction is made, sclerotic parenchyma being applied
   to tissue composed of cells with the walls hardened but
   not thickened, and sclerenchyma to tissue composed of
   cells with the walls both hardened and thickened.

\Scle*rot"ic\, n. [Cf. F. scl['e]rotique.] (Anat.)
The sclerotic coat of the eye. See Illust. of {Eye}
(d) .

\Scle*rot"ic\, a. (Chem.)
Pertaining to, or designating, an acid obtained from ergot or
the sclerotium of a fungus growing on rye.