赤せき熱ねつ

noun, noun or participle which takes 'suru', transitive verb, intransitive verb, noun which may take the genitive case particle 'no'

red heat; glowing red-hot

Refers to the state of being heated to a red glow, often in metallurgy or physics. Can be used as a noun, suru-verb (intransitive/transitive), or no-adjective.

• 鉄てつを赤せき熱ねつするまで加か熱ねつする。

  Heat the iron until it becomes red-hot.

• 赤せき熱ねつした金きん属ぞくは柔やわらかくなる。

  Red-hot metal becomes soft.