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鉄滓 (てっさい, tessai) Japanese meaning: iron slag | Kotomora

鉄てっ滓さい

Meanings

1

iron slag

Technical term for the waste material left after smelting iron.

製せい鉄てつ所じょでは大たい量りょうの鉄てっ滓さいが発はっ生せいする。
A large amount of iron slag is produced at the steel mill.

Kanji

鉄iron
滓dregs, grounds

Related words

スラグ
スラグ is a more general loanword for slag from various smelting processes, while 鉄滓 specifically refers to iron slag.

Etymology

Compound of 鉄 (iron) and 滓 (dregs, sediment). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.