Source : Webster's Revised Unabridged Dictionary (1913)

Blob \Blob\ (bl[o^]b), n. [See {Bleb}.]
   1. Something blunt and round; a small drop or lump of
      something viscid or thick; a drop; a bubble; a blister.
      --Wright.

   2. (Zo["o]l.) A small fresh-water fish ({Uranidea
      Richardsoni}); the miller's thumb.