Dictionary.com
definitions

sponge iron

noun

finely divided, porous iron, reduced from an oxide at a temperature below the melting point.

RELATED CONTENT

Iron FistRead more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE
BeautyblenderRead more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE

Nearby words

  1. sponge bag,
  2. sponge bath,
  3. sponge cake,
  4. sponge cloth,
  5. sponge down,
  6. sponge on,
  7. sponge rubber,
  8. sponge tree,
  9. sponged ware,
  10. spongefly

Origin of sponge iron

First recorded in 1870–75
Also called iron sponge.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019