What does the combining form "scler/o" mean?

The combining form "scler/o" is associated with the meaning "hard" or refers specifically to the "sclera," which is the tough outer layer of the eyeball. In medical terminology, it is often used to denote conditions or characteristics related to hardening tissues in various parts of the body. For instance, in the term "sclerosis," it refers to the hardening of tissue due to various pathological conditions. Understanding combining forms like "scler/o" is fundamental in the medical field, as they allow healthcare professionals to build and interpret complex medical terms that communicate specific meanings about anatomy, pathology, and treatment. The other options do not relate specifically to the meanings provided by "scler/o."