Definition of sclerotic

• a. - Hard; firm; indurated; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony.
• a. - Of or pertaining to the sclerotic coat of the eye; sclerotical.
• a. - Affected with sclerosis; sclerosed.
• n. - The sclerotic coat of the eye. See Illust. of Eye (d).
• a. - Pertaining to, or designating, an acid obtained from ergot or the sclerotium of a fungus growing on rye.