yìng​huà

harden

硬化 yìng​huà
harden verb
to become hard or solid, especially as a physical or material process

It takes several days for concrete to fully harden.

ossify verb
to become inflexible or rigid in one's opinions, thinking, or systems

In this rapidly evolving era, we cannot allow our thinking to become rigid.

sclerosis verb
the abnormal hardening of body tissue or an organ in a medical context

Due to arteriosclerosis, the elderly man's blood pressure has been very unstable.

Frequency

Movie subtitles
2.98 per million appears in 1% of films
Written text
5.16 per million

Sources

Definitions
CC-CEDICT