Source : Webster's Revised Unabridged Dictionary (1913)

Slime \Slime\, n. [OE. slim, AS. sl[=i]m; akin to D. slijm, G.
   schleim, MHG. sl[=i]men to make smooth, Icel. sl[=i]m slime,
   Dan. sliim; cf. L. limare to file, polish, levis smooth, Gr.
   ???; or cf. L. limus mud.]
   1. Soft, moist earth or clay, having an adhesive quality;
      viscous mud.

            As it [Nilus] ebbs, the seedsman Upon the slime and
            ooze scatters his grain.              --Shak.

   2. Any mucilaginous substance; any substance of a dirty
      nature, that is moist, soft, and adhesive.

   3. (Script.) Bitumen. [Archaic]

            Slime had they for mortar.            --Gen. xi. 3.

Slime \Slime\, v. t. [imp. & p. p. {Slimed}; p. pr. & vb. n.
   {Sliming}.]
   To smear with slime. --Tennyson.

Source : WordNet®

slime
     n : any thick messy substance [syn: {sludge}, {goo}, {gook}, {guck},
          {gunk}, {muck}, {ooze}]
     v : cover or stain with slime; "The snake slimed his victim"