parasite

noun

par·a·site ˈper-ə-ˌsīt How to pronounce parasite (audio)

ˈpa-rə-

plural parasites

: an organism living in, on, or with another organism in order to obtain nutrients, grow, or multiply often in a state that directly or indirectly harms the host (see host entry 3 sense 2a)

Now the death of its host is certainly a setback to any parasite. To some (like the tapeworm) it is fatal; but smarter ones (like the louse) simply go off in search of a new host.

David Jones

The fungus is an obligate parasite, that is, it must have a living host (tobacco) on which to grow and complete its life cycle.

G. B. Lucas

The blood schizogonic cycle of human malaria parasites has thus far been the most exhaustively studied phase of parasite development.

Dominique Mazier et al.

Sadly, the vireo is vulnerable to a nest parasite, the brown-headed cowbird … . The cowbird lays its much-larger eggs in the vireo's nest, which hatch first and place such a high food demand on its tiny "parents" that the vireo young go unfed.

Karen D. Fishler

Note: Some restrict the use of parasite to include only multicellular forms (such as protozoans and helminths) while others use it to include bacteria and viruses.

Unlike bacteria or viruses, parasites undergo a metamorphosis during their life cycles that presents the human immune system with a moving target.

Lawrence M. Fisher

Like all viruses, the human immunodeficiency virus (HIV) is an intracellular parasite: the virus particle itself is inert and cannot propagate or do any damage until it enters a host cell.

Jonathan N. Weber and Robin A. Weiss

Salmonella species are intracellular parasites, and it is thought that these bacteria gain access to their host by penetrating through intestinal epithelial cells.

B. Brett Finlay et al.

Example Sentences

Many diseases are caused by parasites. She's a parasite who only stays with him for the money. These new companies are parasites feeding off the success of those who spent the last decade establishing the industry.

Recent Examples on the Web In addition to the HIV mutation, there are only two others that are known: One for the norovirus, and another for a malaria parasite.

Teresa M. Hanafin, BostonGlobe.com, 26 July 2022 The neurological disease is caused by a parasite found in possum droppings and can be treated with medicine.

Elisha Fieldstadt, NBC News, 11 Aug. 2022 Heartworm is a parasite that causes a pulmonary disease in pets like dogs, cats and ferrets.

Claire Rafford, The Indianapolis Star, 21 June 2022 Bitter crab disease, a common disease caused by a parasite, was also noted as one potential cause for the massive uptick in mortality.

Elizabeth Earl For Alaska Journal Of Commerce, Anchorage Daily News, 16 June 2022 The common bed bug, Cimex lectularius, has been a parasite of humans for thousands of years.

Jerome Goddard, The Conversation, 3 June 2022 Climate change may be amplifying a deadly parasite in honeybee populations.

Allison Chinchar And Jennifer Gray, CNN, 14 Aug. 2022 If a tick latched onto the skin of someone who was vaccinated, antibodies in the person’s blood would kill the pathogens inside the parasite.

Jonathan Saltzman, BostonGlobe.com, 13 Aug. 2022 This allowed the parasite to move on to its optimal host.

Joshua Hawkins, BGR, 4 Aug. 2022 See More

Medical Definition

parasite

noun

par·a·site ˈpar-ə-ˌsīt How to pronounce parasite (audio)

: an organism living in, with, or on another organism in order to obtain nutrients, grow, or multiply often in a state that directly or indirectly harms the host (see host sense 1)

The blood schizogonic cycle of human malaria parasites has thus far been the most exhaustively studied phase of parasite development.

Dominique Mazier et al., Nature

Note: Some restrict the use of parasite to include only multicellular forms (such as protozoans and helminths) while others use it to include bacteria and viruses.

These cells call up a portion of the immune system that identifies and destroys cells infected with bacteria, viruses, and parasites.

L. Seachrist, Science News

Like all viruses, the human immunodeficiency virus (HIV) is an intracellular parasite: the virus particle itself is inert and cannot propagate or do any damage until it enters a host cell.

Jonathan N. Weber and Robin A. Weiss, Scientific American

Salmonella species are intracellular parasites, and it is thought that these bacteria gain access to their host by penetrating through intestinal epithelial cells.

B. Brett Finlay et al., Science

parasites

noun

plural of parasite

as in leeches

a person who is supported by or seeks support from another without making an adequate return a parasite who lived in the family's basement and refused to get a job or pay rent

Synonyms & Similar Words

Relevance

leeches
freeloaders
sponges
spongers
bloodsuckers
moochers
dependents
henchmen
free riders
hangers-on
deadbeats
misers
sycophants
lackeys
toadies
satellites
idlers
flunkeys
stooges
skinflints
tightwads
scrooges
flunkies
pikers
cheapskates
niggards
yes-men

Antonyms & Near Antonyms

benefactors
supporters
philanthropists

单词	parasites
释义	parasite noun par·a·site ˈper-ə-ˌsīt ˈpa-rə- plural parasites 1 : an organism living in, on, or with another organism in order to obtain nutrients, grow, or multiply often in a state that directly or indirectly harms the host (see host entry 3 sense 2a) Now the death of its host is certainly a setback to any parasite. To some (like the tapeworm) it is fatal; but smarter ones (like the louse) simply go off in search of a new host. David Jones The fungus is an obligate parasite, that is, it must have a living host (tobacco) on which to grow and complete its life cycle. G. B. Lucas The blood schizogonic cycle of human malaria parasites has thus far been the most exhaustively studied phase of parasite development. Dominique Mazier et al. Sadly, the vireo is vulnerable to a nest parasite, the brown-headed cowbird … . The cowbird lays its much-larger eggs in the vireo's nest, which hatch first and place such a high food demand on its tiny "parents" that the vireo young go unfed. Karen D. Fishler Note: Some restrict the use of parasite to include only multicellular forms (such as protozoans and helminths) while others use it to include bacteria and viruses. Unlike bacteria or viruses, parasites undergo a metamorphosis during their life cycles that presents the human immune system with a moving target. Lawrence M. Fisher Like all viruses, the human immunodeficiency virus (HIV) is an intracellular parasite: the virus particle itself is inert and cannot propagate or do any damage until it enters a host cell. Jonathan N. Weber and Robin A. Weiss Salmonella species are intracellular parasites, and it is thought that these bacteria gain access to their host by penetrating through intestinal epithelial cells. B. Brett Finlay et al. see also ectoparasite, endoparasite 2 : someone or something that resembles a biological parasite in living off of, being dependent on, or exploiting another while giving little or nothing in return But the frequent and familiar companions of the great, are those parasites, who practise the most useful of all arts, the art of flattery … Edward Gibbon Their lyrics … convey a bilious contempt for the city's wealthy parasites … Philip Montoro In their view, the country is afflicted with a class of parasites—"Career politicians," who devote their lives to perpetuating themselves in office by spending the people's money. Hendrick Hertzberg Regulatory agencies have stripped Holyfield of his boxing license now, protecting him from his pride and from the parasites who can still squeeze money out of the faded neon in his name. Dan Le Batard Synonyms bloodsucker free rider freeloader hanger-on leech moocher sponge sponger See all Synonyms & Antonyms Example Sentences Many diseases are caused by parasites. She's a parasite who only stays with him for the money. These new companies are parasites feeding off the success of those who spent the last decade establishing the industry. Recent Examples on the Web In addition to the HIV mutation, there are only two others that are known: One for the norovirus, and another for a malaria parasite. Teresa M. Hanafin, BostonGlobe.com, 26 July 2022 The neurological disease is caused by a parasite found in possum droppings and can be treated with medicine. Elisha Fieldstadt, NBC News, 11 Aug. 2022 Heartworm is a parasite that causes a pulmonary disease in pets like dogs, cats and ferrets. Claire Rafford, The Indianapolis Star, 21 June 2022 Bitter crab disease, a common disease caused by a parasite, was also noted as one potential cause for the massive uptick in mortality. Elizabeth Earl For Alaska Journal Of Commerce, Anchorage Daily News, 16 June 2022 The common bed bug, Cimex lectularius, has been a parasite of humans for thousands of years. Jerome Goddard, The Conversation, 3 June 2022 Climate change may be amplifying a deadly parasite in honeybee populations. Allison Chinchar And Jennifer Gray, CNN, 14 Aug. 2022 If a tick latched onto the skin of someone who was vaccinated, antibodies in the person’s blood would kill the pathogens inside the parasite. Jonathan Saltzman, BostonGlobe.com, 13 Aug. 2022 This allowed the parasite to move on to its optimal host. Joshua Hawkins, BGR, 4 Aug. 2022 See More Word History Etymology Middle French, from Latin parasitus, from Greek parasitos, from para- + sitos grain, food First Known Use 1539, in the meaning defined at sense 2 Kids Definition parasite noun par·a·site ˈper-ə-ˌsīt 1 : a living thing (as a flea, worm, or fungus) that lives in or on another living thing and gets food and sometimes shelter from it and usually causes harm to it 2 : a person who lives at the expense of another Medical Definition parasite noun par·a·site ˈpar-ə-ˌsīt : an organism living in, with, or on another organism in order to obtain nutrients, grow, or multiply often in a state that directly or indirectly harms the host (see host sense 1) The blood schizogonic cycle of human malaria parasites has thus far been the most exhaustively studied phase of parasite development. Dominique Mazier et al., Nature Note: Some restrict the use of parasite to include only multicellular forms (such as protozoans and helminths) while others use it to include bacteria and viruses. These cells call up a portion of the immune system that identifies and destroys cells infected with bacteria, viruses, and parasites. L. Seachrist, Science News Like all viruses, the human immunodeficiency virus (HIV) is an intracellular parasite: the virus particle itself is inert and cannot propagate or do any damage until it enters a host cell. Jonathan N. Weber and Robin A. Weiss, Scientific American Salmonella species are intracellular parasites, and it is thought that these bacteria gain access to their host by penetrating through intestinal epithelial cells. B. Brett Finlay et al., Science parasites noun plural of parasite as in leeches a person who is supported by or seeks support from another without making an adequate return a parasite who lived in the family's basement and refused to get a job or pay rent Synonyms & Similar Words Relevance leeches freeloaders sponges spongers bloodsuckers moochers dependents henchmen free riders hangers-on deadbeats misers sycophants lackeys toadies satellites idlers flunkeys stooges skinflints tightwads scrooges flunkies pikers cheapskates niggards yes-men Antonyms & Near Antonyms benefactors supporters philanthropists
随便看	glaucous-winged gull glaucouser glaucousest glaucousness glaucousnesses glaucousser glaucoussest Glaucus glaum glaur Glaux glauxes glave glaver glavering glaze glaze kiln glazed glazed frost glazen glazer glazers glazes glazier glazier's point

parasite

noun

Synonyms

Example Sentences

Word History

Kids Definition

noun

Medical Definition

noun

noun