saprozoic

1. Obtaining nourishment by absorption of dissolved organic and inorganic materials, as in protozoans and some fungi.
2. Feeding on dead or decaying animal matter.

1. Obtaining nourishment by absorption of dissolved organic and inorganic materials, as occurs in certain protozoa and some fungi.
2. Feeding on dead or on decaying animal matter.

Living on decayed organic matter; said of animals, especially protozoa.

The adjective has one meaning:

Meaning #1: (of certain animals) nourished on dead or decaying animal matter
  Synonym: saprophagous