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Homework 1 Definitions
Definitions in Chapter 1 and 2
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Undergraduate 2
01/16/2018

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Term
Aberrant parasite
Definition
Parasite that has wandered from its usual site of infecton into an organ or location in which is does not noramlly belong.
Term
Acanthocephalins
Definition
A thorny headed worm.
Term
Acaricides
Definition
Chemical compound used to kill mites and ticks.
Term
Adulticide
Definition
Chemical compounds that kill certain adult helminths.
Term
Amicrofilaremic
Definition
Referring to the absence of immature filarial parasites.
Term
Annelids
Definition
Earthworms.
Term
Anthelmintics
Definition
Chemical compounds developed to kill roundworms, tapeowrms, flukes, and thorny headed worms.
Term
Antiprotozoals
Definition
Chemical compounds developed to kill protozoan organisms.
Term
Arachnid
Definition
Jointed legged invertebrate animals and have 8 legs. ex: ticks, mites.
Term
Ascarids
Definition
Roundworms
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 in different regions of the world.
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 inside the bosy of the host, produces an infection inside the host.
Term
Erratic parasite
Definition
Parasite that has wandered from its usual site of infecton into an organ or location in which is does not noramlly belong.
Term
Euryxenous parasite
Definition
Parasite with a very broad hsot range.
Term
Facultative parasite
Definition
Organism that is usually free living in nature and develops a parasitic existence in certain hosts.
Term
. Free-living parasite
Definition
An organism which is capable of living in the environment and leading a nonparasitic existence.
Term
Genus name
Definition
The group a particualr type of animal, parasite, or plant belongs to.
Term
Helminths
Definition
Parasitic worm.
Term
Homoxenous parasite
Definition
Parasite that infects only one type of host.
Term
Host
Definition
In a parasitic relatonship, the member in which or on whcih the parasite lives.
Term
Incidental parasite
Definition
Parasire found in a host in which it does not usually live.
Term
Infection
Definition
A condition caused by a endoparasite within the hosts body.
Term
Infestation
Definition
A condition caused by an ectoparasite outside or on the hosts body.
Term
Insecta
Definition
Class for insects.
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.
Term
Larviparous
Definition
Type of female nematode that retains her eggs within the uterus and produces live first stage larvae.
Term
Life Cycle
Definition
Development of a parasite through its various life stages.
Term
Linnaean Classification Scheme
Definition
Classification for all living organisms.
Term
Microfilaricide
Definition
Dewormer that kills the immature filarial worm.
Term
Monoxenous parasite
Definition
A parasite that infects only one type of host.
Term
Mutualism
Definition
Type of symbiotic relationship in which both organisms derive some benefit.
Term
Nematode
Definition
Roundworms
Term
Obligatory parasite
Definition
Parasite that must lead a parasitic existence; most parasites of domestic animals.
Term
Oviparous
Definition
Type of nematode egg that contains either a single cell or a morula, a grapelike cluster of eggs.
Term
Ovoviviparous
Definition
Type of nematode egg that contains a first stage larva.
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 show outward clinical signs of disease.
Term
Parasitosis
Definition
Type of parasitic relationship in which the oarasite is present on or within the host and causes obvious injury or harm to the hoat.
Term
Parasiticides
Definition
Chemical compounds used to treat specific internal and external parasites.
Term
Parasitology
Definition
The study of parasitic relationships.
Term
Paratenic host
Definition
A host used for transport of a parasite. Parasite does not go through any developmental stages.
Term
Pathogenecity
Definition
Disease causing potential.
Term
Periodic parasite
Definition
Parasite that makes frequent short visits to the host to obtain nourishment or other benefits.
Term
Phoresis
Definition
Type of symbiotic relationship in which the smaller member in the relationship is mechanically carried by the larger member.
Term
Platyhelminthes
Definition
Flatworm.
Term
Protozoan parasite
Definition
Unicellular, or single celled, organisms that may be flagellates, amoebae, sporozoans, apicomplexans, or ciliates.
Term
Pseudoparasite
Definition
Living creatures or inanimate objects that are not parasitic by may be mistaken for as parasites.
Term
Reservoir host
Definition
Vertebrate host in which a parasite or disease occurs in nature and is a source of infection for humans or other domesticated animals.
Term
Scientific name
Definition
Name for a living organism that is composed of two latin words, usually written in italics.
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 two living organisms of different species.
Term
Transport host
Definition
Special type of intermediate host inw hich that parasite does not undergo any development but instead remains arrested or encysted within the hosts tissues.
Term
Trematode
Definition
The flukes.
Term
Vectors
Definition
Biting organim like a flea or tick that transmits a disease or parasite from one organism to another.
Term
Zoonosis
Definition
Any disease or parasite that is transmissible from animals to humans.
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