Word Study
free-living
CIDE DICTIONARY
free-living, n.
Unrestrained indulgence of the appetites as a way of life. [1913 Webster]
free-living, adj.
Living independently of other organisms; not parasitic or commensal.
"eating other organisms is not considered "dependence" in this sense." [WordNet 1.5]
For further exploring for "free-living" in Webster Dictionary Online