(こうか)

こうか
noun / suru verb
hardening, sclerosis
1. hardening, stiffening
The process of becoming hard or rigid. Used for physical materials (concrete, adhesives) and medical conditions (arteries, tissue).
セメントが硬化(こうか)した。
The cement has hardened.
動脈(どうみゃく)硬化(こうか)生活(せいかつ)習慣(しゅうかん)(びょう)のひとつだ。
Arteriosclerosis is one of the lifestyle-related diseases.
接着(せっちゃく)(ざい)完全(かんぜん)硬化(こうか)するまで二十四(にじゅうよ)時間(じかん)かかる。
It takes twenty-four hours for the adhesive to fully harden.

USAGE:
Used in both technical/industrial and medical contexts. In medicine, 動脈(どうみゃく)硬化(こうか) (arteriosclerosis) is the most well-known compound. In manufacturing and construction, it refers to the curing or hardening of materials.

COMMON COLLOCATIONS:

  • 動脈(どうみゃく)硬化(こうか): arteriosclerosis
  • 硬化(こうか)(ざい): hardening agent, curing agent
  • 硬化(こうか)コンクリート: hardened concrete
  • 表面(ひょうめん)硬化(こうか): surface hardening