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sponge iron
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noun
finely divided, porous iron, reduced from an oxide at a temperature below the melting point.
QUIZ
QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?
Also called iron sponge.
Origin of sponge iron
First recorded in 1870–75
Words nearby sponge iron
sponge cake, sponge cloth, sponge down, sponged ware, spongefly, sponge iron, sponge on, sponger, sponge rubber, sponge tree, spongeware
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022