Also used in biology/medicine to describe tissue such as arterial walls that have become rigid.

Examples: The Republican Party has become sclerotic from too many years in power.

His arteries have become sclerotic from cholesterol plaque that has built up in them.

adj.

Affected or marked by sclerosis.

Anatomy. Of or relating to the sclera.

Medical Dictionary

scle·rot·ic (sklə-rŏt’Ä­k)

adj.

Affected or marked by sclerosis.

Of or relating to the sclera of the eye.

The adjective sclerotic has 2 meanings:

Meaning #1: relating to or having sclerosis; hardened

Synonym: sclerosed

Pertains to noun: sclerosis (meaning #1)

Meaning #2: of or relating to the sclera of the eyeball

Pertains to noun: sclera (meaning #1)

Sclerotic rings are rings of bone found in the eyes of several groups of vertebrate animals, except for mammals and crocodilians.They can be made up of single bones or small bones together.They are believed to have a role in supporting the eye, especially in animals whose eyes are not spherical, or who live underwater

adjective

1. relating to or having sclerosis; hardened; “a sclerotic patient”

2. of or relating to the sclera of the eyeball; “sclerotic tissue”

http://www.m-w.com/dictionary/sclerotic