*sclerotic*

a. [ Gr. sklhro`s hard: cf. F. sclérotique. ] 1. Hard; firm; indurated; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony. [ 1913 Webster ]

2. (Anat.) Of or pertaining to the sclerotic coat of the eye; sclerotical. [ 1913 Webster ]

3. (Med.) Affected with sclerosis; sclerosed. [ 1913 Webster ]

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. [ 1913 Webster ]

n. [ Cf. F. sclérotique. ] (Anat.) The sclerotic coat of the eye. See Illust. of Eye (d). [ 1913 Webster ]

a. (Chem.) Pertaining to, or designating, an acid obtained from ergot or the sclerotium of a fungus growing on rye. [ 1913 Webster ]