Pronunciation: (par'u-sī-tiz"um, -si-),[key] —n. 1. Biol.a relation between organisms in which one lives as a parasite on another.
2. a parasitic mode of life or existence.
3. Pathol.a diseased condition due to parasites.
4. (in some totalitarian countries)
a. unemployment or refusal to work.
b. employment in work considered nonessential by the state.