(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

plural of brood parasite

plural of parasitic element

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

(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) The practice of laying eggs in the nest of another species (the host species) and allowing the host birds to rear the young, as practised by cowbirds, honeyguides, and most species of cuckoo.

(ornithology) Practicing brood parasitism.