1. (a.) Hard; firm; indurate; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony.

2. (a.) of or pertaining to the sclerotic coat of the eye; sclerotical.

3. (a.) Affected with sclerosis; sclerosed.

4. (n.) The sclerotic coat of the eye.

5. (a.) Pertaining to, or designating, an acid obtained from ergot or the sclerotium of a fungus growing on rye.

accepted acclaimed admired admitted advocated applauded approved calcified callous calloused case-hardened cried up crusted crusty crystallized favored favorite fossilized granulated hardened highly touted hornified in good odor incrusted indurate indurated lapidified ossified petrified popular received recommended reinforced rigidified sclerotic set solidified steeled stiffened strengthened supported toughened vitrified well-thought-of