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.

Source: Webster's Revised Unabridged Dictionary (1913)