Source : Webster's Revised Unabridged Dictionary (1913)

Pabulum \Pab"u*lum\, n. [L., akin to pascere to pasture. See
   {Pastor}.]
   The means of nutriment to animals or plants; food;
   nourishment; hence, that which feeds or sustains, as fuel for
   a fire; that upon which the mind or soul is nourished; as,
   intellectual pabulum.

Source : WordNet®

pabulum
     n 1: any substance that can be used as food [syn: {comestible}, {edible},
           {eatable}, {victual}, {victuals}]
     2: insipid intellectual nourishment