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冷却材 (reikyakuzai) Japanese meaning: coolant | Kotomora

冷れい却きゃく材ざい

れ

い

きゃ

く

ざ

い

Meanings

1

Technical term primarily used for coolant in nuclear reactors; also applicable to other industrial cooling contexts.

原げん子し炉ろでは冷れい却きゃく材ざいとして水みずや液えき体たいナトリウム

が

使つか

わ

れる

。

In nuclear reactors, water or liquid sodium is used as a coolant.

Kanji

冷cool, cold (beer, person), chill
却instead, on the contrary, rather
材lumber, log, timber

Related words

冷れい却きゃく水すい
冷却水 specifically refers to cooling water, while 冷却材 is a broader term for any coolant material.
冷れい媒ばい
冷媒 is used for refrigerants in cooling systems like air conditioners, whereas 冷却材 is more common in nuclear and industrial contexts.

Built from

冷れい却きゃく+材ざい

Etymology

Compound of 冷却 (cooling) + 材 (material).