from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Resembling a sponge in appearance or texture; spongy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Like a sponge, porous, full of holes.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Resembling a sponge; soft and porous; porous.

from The Century Dictionary and Cyclopedia

  • Having the form or structure of a sponge; poriferous, as a member of the Spongiæ; of or pertaining to the Spongiæ.
  • Sponge-like; spongy; soft, elastic, and porous, like an ordinary bath-sponge: noting various objects or substances not sponges.


Latin spongia, sponge; see sponge + -form.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek σπόγγος (spongos, "sponge") + -form (Wiktionary)



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