hardening

noun

1. abnormal hardening or thickening of tissue

Definition categories: state, symptom

2. the process of becoming hard or solid by cooling or drying or crystallization

- the hardening of concrete

Similar word(s): curing, set, solidification, solidifying

Definition categories: process, action, activity

3. the act of making something harder (firmer or tighter or more compact)

Definition categories: act

verb

1. present participle of harden