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Related to Parasitic organisms: Ectoparasites


 (păr′ə-sĭ-toid′, -sī′toid)
An organism, usually an insect, that lives on or in a host organism during some period of its development and eventually kills its host.

par′a·sit·oid′ adj.


(Zoology) zoology an animal, esp an insect, that is parasitic during the larval stage of its life cycle but becomes free-living when adult


(ˈpær ə sɪˌtɔɪd, -saɪ-)

1. an insect that hatches within a host, feeds on it during the larval stage, and becomes free-living when the host dies.
2. any organism whose mode of life is intermediate between a parasite and a predator.
3. of or pertaining to a parasitoid.
[1920–25; < New Latin Parasitoïdea (1913); see parasite, -oid]
par′a•sit•oid•ism, n.
References in periodicals archive ?
Sewage discharges can carry bacteria, viruses, parasitic organisms, intestinal worms and molds and fungi.
and Ascarids are parasitic organisms of major occurrence in stool surveys also in Bom Jesus (Northeast of Brazil) and these condition of central organisms to Giardia sp.
The Centenary researchers, however, suspected they might be associated with type 2 immunity, the part of the immune system that deals with infection by parasitic organisms.
PCI), which provides two kinds of services: diagnostic services of parasitic organisms and agents of medical and public health importance; and educational services, including continuing-education seminars and workshops offered to health-care practitioners.
Viruses, fungi and parasitic organisms are all developing resistance to first-and in many cases even second- and third-line drug therapies.
Pet waste contains bacteria and parasitic organisms that can contaminate waterways.
While roundworms are the most common among the complex parasitic organisms, he adds, hookworms are the most lethal--especially in warmer areas of the U.
Koch was influenced by Henle, who believed that infectious diseases were caused by living, parasitic organisms.
It has been observed that most of the barbers reuse their tools without disinfecting them, creating an opportunity for the transmission of bacterial, viral, fungal, or parasitic organisms.
Table 1 indicates the prevalence of intestinal parasitic organisms in stools of the study subjects with or without diarrhoea.
The most frequently observed feline dermatologic disorder is a severe reaction to the presence on the skin of parasitic organisms, especially fleas and ear mites.
Paragonimus Westermani and other Paragonimus species are parasitic organisms that belong to a group of parasites called flukes (flat worms) of the class Trematoda.