(electronics) A circuit element or property that is present within an electrical component, and has a negative effect on the performance of the circuit.

plural of parasitic element

(grammar) A construction wherein the dropping of an argument is dependent on a covarying argument having been fronted in a local context, as in "Which book did she review without reading?".

plural of parasitic gap

(ornithology) Practicing brood parasitism.

plural of parasitic drag

(physics) A type of aerodynamic drag that acts on any object when the object is moving through a fluid.

(derogatory) A person who is seen as living off the welfare of others.

An animal - bird, fish or insect - that relies on other species to raise their young.

plural of welfare parasite