Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to parasitic: Parasitic diseases, Parasitic worms


 (păr′ə-sĭt′ĭk) also par·a·sit·i·cal (-ĭ-kəl)
1. Of, relating to, or characteristic of a parasite.
2. Caused by a parasite: parasitic diseases.

par′a·sit′i·cal·ly adv.


(ˌpær əˈsɪt ɪk)

also par`a•sit′i•cal,

1. of, pertaining to, or characteristic of parasites.
2. (of diseases) due to parasites.
[1620–30; < Latin < Greek]
par`a•sit′i•cal•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.parasitic - relating to or caused by parasites; "parasitic infection"
2.parasitic - of or pertaining to epenthesis
3.parasitic - of plants or persons; having the nature or habits of a parasite or leech; living off another; "a wealthy class parasitic upon the labor of the masses"; "parasitic vines that strangle the trees"; "bloodsucking blackmailer"; "his indolent leechlike existence"
dependent - relying on or requiring a person or thing for support, supply, or what is needed; "dependent children"; "dependent on moisture"


adjective scrounging (informal), sponging (informal), cadging, bloodsucking (informal), leechlike They are just parasitic spongers who have no intention of finding work.


Of or characteristic of a parasite:
Slang: freeloading.
حَيوان أو نَبات طُفَيْلي


[ˌpærəˈsɪtɪk] ADJparásito, parasitario
to be parasitic onser parásito de


[ˌpærəˈsɪtɪk] parasitical [ˌpærəˈsɪtɪəl] adj
[disease, infection] → parasitaire
[animal, plant] → parasite
tiny parasitic insects → de minuscules insectes parasites
(fig) [person] → parasite


adjparasitisch, parasitär (also fig); to be parasitic (up)on somethingvon etw schmarotzen; parasitic insect/plantParasit m, → Schmarotzer m


[ˌpærəˈsɪtɪk] parasitical [ˌpærəˈsɪtɪkl] adj (gen) → parassita; (disease) → parassitario/a


(ˈpӕrəsait) noun
an animal or plant that lives on another animal or plant without giving anything in return. Fleas are parasites; He is a parasite on society.
ˌparaˈsitic adjective


adj parasitario
References in classic literature ?
Tree-ferns and mosses and a myriad other parasitic forms jostled with gay-coloured fungoid growths for room to live, and the very atmosphere itself seemed to afford clinging space to airy fairy creepers, light and delicate as gem-dust, tremulous with microscopic blooms.
For profit- -his life blood transmuted into a wine-supper, or a jewelled gewgaw, or some similar sense-orgy of the parasitic and idle rich, his masters, the arch-beasts.
And beneath that roof was an aerial ooze of vegetation, a monstrous, parasitic dripping of decadent life- forms that rooted in death and lived on death.
But even some of these so-called epidemics appear to be due to parasitic worms, which have from some cause, possibly in part through facility of diffusion amongst the crowded animals, been disproportionably favoured: and here comes in a sort of struggle between the parasite and its prey.
The often repeated description of the stately palm and other noble tropical plants, then birds, and lastly man, taking possession of the coral islets as soon as formed, in the Pacific, is probably not correct; I fear it destroys the poetry of this story, that feather and dirt-feeding and parasitic insects and spiders should be the first inhabitants of newly formed oceanic land.
The earth is not a mere fragment of dead history, stratum upon stratum like the leaves of a book, to be studied by geologists and antiquaries chiefly, but living poetry like the leaves of a tree, which precede flowers and fruit -- not a fossil earth, but a living earth; compared with whose great central life all animal and vegetable life is merely parasitic.
16, 2015 /PRNewswire/ -- The Parasitic Partnering 2010-2015 report provides understanding and access to the parasitic partnering deals and agreements entered into by the worlds leading healthcare companies.
Practitioners of biological medicine should thoughtfully and routinely consider parasitic infection in their differential diagnosis.
Contract notice: Diagnostics, measures and various services for lead and parasitic state
There is a continuum between parasitic and symbiotic where a symbiont is able to use the host without hurting it at all and gives back.
The finding calls into question whether parasitic infections should always receive treatment.
A team of Chinese surgeons has successfully operated on a two-year-old boy, who was 'pregnant' with his parasitic twin.