1) any refuse, as the excrement of animals, offscourings, rubbish, dregs
1a) of things worthless and detestable
Part of Speech: noun neuter
Citing in TDNT: 7:445, 1052
Neuter of a presumed derivative of G1519 and G2965 and G906; what is thrown to the dogs, that is, refuse (ordure): - dung.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root σκύβαλον; click on the second column to search for that grammatical form of the root σκύβαλον; click on the third column to search for that word and grammatical form; click on the total to search for the root σκύβαλον.