ADJECTIVE (3)

1. of or relating to or attended by putrefaction;
- Example: "putrid decomposition"

2. in an advanced state of decomposition and having a foul odor;
- Example: "horrible like raw and putrid flesh"- Somerset Maugham

3. morally corrupt or evil;
- Example: "the putrid atmosphere of the court"

The Collaborative International Dictionary of English v.0.48:

Putrid \Pu"trid\, a. [L. putridus, fr. putrere to be rotten, fr.
   puter, or putris, rotten, fr. putere to stink, to be rotten:
   cf. F. putride. See Pus, Foul, a.]
   1. Tending to decomposition or decay; decomposed; rotten; --
      said of animal or vegetable matter; as, putrid flesh. See
      Putrefaction.
      [1913 Webster]

   2. Indicating or proceeding from a decayed state of animal or
      vegetable matter; as, a putrid smell.
      [1913 Webster]

   Putrid fever (Med.), typhus fever; -- so called from the
      decomposing and offensive state of the discharges and
      diseased textures of the body.

   Putrid sore throat (Med.), a gangrenous inflammation of the
      fauces and pharynx.
      [1913 Webster]

WordNet (r) 3.0 (2006):

putrid
    adj 1: of or relating to or attended by putrefaction; "putrid
           decomposition"
    2: in an advanced state of decomposition and having a foul odor;
       "horrible like raw and putrid flesh"- Somerset Maugham
    3: morally corrupt or evil; "the putrid atmosphere of the court"