The medical term meaning "hardening of the skin" is
dermamalacia
sclerounguo
scleroderma
astroderma
scleroderma
Rationale: Scler/o means hard and dermat/o means skin. All other options are nonsense distractors.
Health Professions
dermamalacia
sclerounguo
scleroderma
astroderma
scleroderma
Rationale: Scler/o means hard and dermat/o means skin. All other options are nonsense distractors.