Source : Webster's Revised Unabridged Dictionary (1913)

   {Vegetable sponge}. (Bot.) See {Loof}.

   {Velvet sponge}, a fine, soft commercial sponge ({Spongia
      equina}, variety {meandriniformis}) found in Florida and
      the West Indies.

   {Vitreous sponge}. See {Glass-sponge}.

   {Yellow sponge}, a common and valuable commercial sponge
      ({Spongia agaricina}, variety corlosia) found in Florida
      and the West Indies.