The Collaborative International Dictionary of English v.0.48:

Feculence \Fec"u*lence\, n. [L. faeculentia dregs, filth: cf. F.
   f['e]culence.]
   1. The state or quality of being feculent; muddiness;
      foulness.
      [1913 Webster]

   2. That which is feculent; sediment; lees; dregs.
      [1913 Webster]

WordNet (r) 3.0 (2006):

feculence
    n 1: something that is feculent

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "feculence":
   BM, beastliness, bowel movement, buffalo chips, ca-ca, coprolite,
   coprolith, cow chips, cow flops, cow pats, crap, defecation,
   dingleberry, disgustingness, droppings, dung, feces, fetidness,
   filthiness, foulness, guano, hoggishness, jakes, manure, movement,
   muckiness, nastiness, nauseousness, night soil, odiousness, ordure,
   ordurousness, piggishness, putridness, rankness, repulsiveness,
   rottenness, scabbiness, scumminess, scurfiness, sewage, sewerage,
   shit, shittiness, stool, swinishness, turd, vileness