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Parasitology Chapters 1 and 2
Vocab
58
Veterinary Medicine
Undergraduate 2
01/24/2018

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Term
Aberrant (erratic) parasite
Definition
An organism which wanders from its usual site of infection
Term
Acanthocephalins
Definition
thorny-headed worm
Term
Acaricides
Definition
Chemical compounds developed to kill mites and ticks
Term
Adulticide
Definition
Insecticide developed to kill adult parasites
Term
Amicrofilaremic
Definition
Referring to the absence of immature filarial parasites
Term
Annelids
Definition
earthworms and leeches
Term
Anthelmintics
Definition
Chemical compounds developed to kill roundworms, tapeworms, flukes, and thorny-headed worms
Term
Antiprotozoals
Definition
Chemical compounds developed to kill protozoan organisms
Term
Arachnid
Definition
A class of joint-legged invertebrates (ticks and mites)
Term
Ascarids
Definition
Small intestinal roundworms (a genus of parasitic nematodes)
Term
Commensalism
Definition
Type of symbiotic relationship in which one symbiont benefits while the other neither benefits nor is harmed
Term
Common name
Definition
Non-scientific name for a living organism
Term
Definitive host
Definition
Host that harbors the adult, sexual, or mature stage of the parasite
Term
Ectoparasite
Definition
parasite that lives on the body of the host
Term
endoparasite
Definition
parasite that lives within the body of the host (produces an infection within the host)
Term
euryxenous parasite<
Definition
parasite with a very bad host range
Term
facultative parasite
Definition
free-living (non-parasitic) organism that can become parasitic in certain hosts
Term
free-living parasite
Definition
an organism which is capable of living in the environment and leading a non-parasitic existence
Term
genus name
Definition
the group a particular type of animal, parasite or plant
Term
helminths
Definition
parasitic worms
Term
homoxenous/ monoxenous parasite
Definition
parasite that infects only one type of host
Term
host
Definition
in a parasitic relationship, the member in which the parasite lives
Term
incidental parasite
Definition
parasite that is found in a host in which it does not usually live
Term
Infection
Definition
a condition caused by an endoparasitic within the hosts body
Term
infestation
Definition
a condition caused by an ectoparasite, outside or on the hosts body
Term
insecta
Definition
invertebrates that have a chitinous exoskeletion, a 3- part body, 3 pairs of jointed legs, eyes and antennae (flies, lice, fleas)
Term
insecticides
Definition
chemical compounds developed to kill insects
Term
intermediate host
Definition
host that harbors the larval , juvenile, immature, or asexual stages of the parasite (a parasite may have more than one intermediate host)
Term
larviparous
Definition
incubate eggs internally produce live larva
Term
life cycle
Definition
development of a parasite through its various life stages
Term
Linnaen Classification Scheme
Definition
classification for all living organisms
Term
microfilaricide
Definition
chemical used to kill microfilaria, as in the larval stages of heartworm
Term
mutualism
Definition
type of symbiotic relationship in which both organisms benefit
Term
nematode
Definition
roundworm
Term
obligatory parasite
Definition
Parasite that must lead a parasitic existence
Term
oviparous
Definition
Egg with a single cell morula (developing embryo) stage
Term
ovoviviparous
Definition
Egg with a first stage larva developing inside
Term
parasite
Definition
In a parasitic relationship, the member that lives on or within the host
Term
parasitiasis
Definition
Type of parasitic relationship in which the parasite is present on or within the host and is potentially pathogenic (animal does not exhibit clinical signs of disease)
Term
parasitosis
Definition
Type of parasitic relationship in which the parasite is present on or within the host and causes obvious injury or harm to the host animal (host exhibits outward signs of disease)
Term
parasiticides
Definition
chemical compounds used to treat specific internal and external parasites
Term
Parasitology
Definition
The study of parasitic relationships
Term
paratenic host (transfer host)
Definition
A host used for transport of a parasite
Term
pathogenecity
Definition
Disease-causing potential
Term
periodic parasite
Definition
parasite that makes frequent short visits to its host to obtain nourishment or other benefits
Term
phoresis
Definition
symbiotic relationship in which the smaller member in the relationship is mechanically carried by the larger member
Term
platyhelminthes
Definition
flatworms (cestodes and trematodes)
Term
protozoan parasites
Definition
unicellular, or single-celled, organisms that may be flagellates, amoebae, sporozoans, apicomplexans or ciliates
Term
pseudoparasite
Definition
organisms or objects that are not parasites but may be mistakenly identified as parasites
Term
reservoir host
Definition
vertebrate host in which a parasite or disease occurs naturally and is a source of infection
Term
scientific name
Definition
name for a living organism made from two Latin words
Term
specific epithet
Definition
the type of animal in a genus
Term
stenoxenous parasite
Definition
parasite with a narrow host range
Term
symbiosis
Definition
any association between at least 2 living organisms of different species
Term
transport host (paratenic host)
Definition
secial type of intermediate host in which the parasite does not undergo any development but instead remains arrested within the host's tissues
Term
trematodes
Definition
flukes, unsegmented flatworms
Term
vectors
Definition
an organism that transmits a disease or parasite from one animal to another
Term
zoonosis
Definition
any disease or parasite that is transmissible from animals to humans
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