nouns
abnormal hardening or thickening of tissue
is a type of (narrower)
(medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
the process of becoming hard or solid by cooling or drying or crystallization
"the hardening of concrete"; "he tested the set of the glue"
the act of making something harder (firmer or tighter or more compact)
is a type of (narrower)
the act of changing the unity or wholeness of something