Noun

1. A shapeless or amorphous mass; a vague shape or amount, especially of a liquid or semisolid substance; a clump, group or collection that lacks definite shape.
   • 1869: Norman Lockyer et al, Nature

     Only the outermost blob on either side in map 2 displays misalignment.

   • 1895: The Annual of the British School at Athens

     It was a colourful vase with red and white hoops on the lid, and red bands above and below the main frieze. These bands also carry a metope pattern in white of triple lines and blobs, which can just be distinguished on the photographs.