What is the medical term meaning hardness?

Answer 1

There are two types of muscular hardness. One is when you strain the muscles through physical work they increase in size and strength. This is called hypertrophy. The other type of muscle hardness is when muscles become hard soon after death due to lack of circulation. This is referred to as rigor mortis.

Answer 2

Myosclerosis is the term for abnormal hardening of muscle tissue.

Answer 3

Sclerosis or induration means hardness.