Source : Webster's Revised Unabridged Dictionary (1913)

Rot \Rot\, v. i. [imp. & p. p. {Rotted}; p. pr. & vb. n.
   {Rotting}.] [OE. rotien, AS. rotian; akin to D. rotten, Prov.
   G. rotten, OHG. rozz?n, G. r["o]sten to steep flax, Icel.
   rotna to rot, Sw. ruttna, Dan. raadne, Icel. rottin rotten.
   [root]117. Cf. {Ret}, {Rotten}.]
   1. To undergo a process common to organic substances by which
      they lose the cohesion of their parts and pass through
      certain chemical changes, giving off usually in some
      stages of the process more or less offensive odors; to
      become decomposed by a natural process; to putrefy; to
      decay.

            Fixed like a plant on his peculiar spot, To draw
            nutrition, propagate, and rot.        --Pope.

   2. Figuratively: To perish slowly; to decay; to die; to
      become corrupt.

            Four of the sufferers were left to rot in irons.
                                                  --Macaulay.

            Rot, poor bachelor, in your club.     --Thackeray.

   Syn: To putrefy; corrupt; decay; spoil.

Source : WordNet®

rot
     n 1: decay usually accompanied by an offensive odor [syn: {putrefaction}]
     2: (biology) decaying caused by bacterial or fungal action
        [syn: {decomposition}, {rotting}, {putrefaction}]
     3: unacceptable behavior (especially ludicrously false
        statements) [syn: {bunk}, {bunkum}, {buncombe}, {guff}, {hogwash}]
     [also: {rotting}, {rotted}]

rot
     v 1: break down; "The bodies decomposed in the heat" [syn: {decompose},
           {molder}, {moulder}]
     2: waste away; "Political prisoners are wasting away in many
        prisons all over the world" [syn: {waste}]
     [also: {rotting}, {rotted}]

rotting
     n : (biology) decaying caused by bacterial or fungal action
         [syn: {decomposition}, {rot}, {putrefaction}]

rotting
     See {rot}