Dictionary.com
definitions

bath sponge

noun
  1. any of various common sponges, of the family Spongiidae, that have a skeletal network composed of fibers of spongin: collected in the Gulf of Mexico, the Mediterranean, and the Caribbean for their commercial value.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for bath sponge

Historical Examples of bath sponge

  • The bath-sponge or slate-sponge consists simply of the hard parts or skeleton of a sponge animal.

  • My bath-sponge, soap, and nailbrush vigorously applied for a few seconds showed me that there was no picture to clean!

    Grim Tales

    Edith Nesbit