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单词 protozoan
释义
protozoan
noun[C]
(alsoprotozoonpluralprotozoauk/ˌprəʊ.təˈzəʊ.ə/us/ˌproʊ.t̬əˈzoʊ.ə/)
uk
/ˌprəʊ.təˈzəʊ.ən/us
/ˌproʊ.t̬əˈzoʊ.ən/
biologyspecialized
any ofvarioustypesof verysmallanimalswith onecell:
原生动物；单细胞生物
Amoebas are protozoans.阿米巴虫是原生动物。
Protozoansreproducebysplittinginto two.
More examples
  • The protozoan thatcausesmalariacanpenetratethegutwallandultimatelymigrateto the mosquito'ssalivarygland, where it isinjectedinto the mosquito's nextvictim.
  • Isosporiasis iscausedby Isospora belli, a protozoanbelongingto thefamilyApicomplexa.
  • These single-celled protozoa getshuttledamongpeopleandanimalsby severalspeciesofinsects.
SMART Vocabulary: related words and phrases
Plants & animals - general words
  • animal kingdom
  • anti-parasitic
  • autotroph
  • biota
  • biped
  • esculent
  • family
  • fauna
  • flora
  • flora and fauna
  • mammalian
  • migrant
  • non-mammalian
  • non-placental
  • omnivore
  • ruminant
  • scavenger
  • secondary consumer
  • songster
  • undomesticated
See more results »
protozoan
adjective
uk
/ˌprəʊ.təˈzəʊ.ən/us
/ˌproʊ.t̬əˈzoʊ.ən/
biologyspecialized
used to refer to any ofvarioustypesof verysmallanimalswith onecell;involvingorrelatingto thistype:
Toxoplasmosis is aninfectioncausedby a protozoanparasitefoundinundercookedmeat.
When thetemperaturereached32-degrees-F all protozoanactivityceased.
More examples
  • Cryptosporidium are protozoanparasites.
  • Theystudied30widelydifferingtypesofmarinebacteriathat were allreadilyeatenby protozoanpredators.
  • Chagas'diseaseis aseriousprotozoaninfection.
SMART Vocabulary: related words and phrases
Plants & animals - general words
  • animal kingdom
  • anti-parasitic
  • autotroph
  • biota
  • biped
  • esculent
  • family
  • fauna
  • flora
  • flora and fauna
  • mammalian
  • migrant
  • non-mammalian
  • non-placental
  • omnivore
  • ruminant
  • scavenger
  • secondary consumer
  • songster
  • undomesticated
See more results »
(Definition ofprotozoanfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
protozoan
noun[C]
biologyspecialized(alsoprotozoonpluralprotozoa)
uk
/ˌprəʊ.təˈzəʊ.ən/us
/ˌproʊ.t̬əˈzoʊ.ən/
any ofvarioustypesof verysmallanimalswith onecell
原生动物；单细胞生物
Amoebas are protozoans.阿米巴虫是原生动物。

protozoan| American Dictionary

protozoan
noun[C]
us/ˌproʊ·t̬əˈzoʊ·ən/
pluralprotozoansorprotozoaus/ˌproʊ·t̬əˈzoʊ·ə/
biology
a verysmallorganismwith only onecell
(Definition ofprotozoanfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofprotozoan

protozoan
It should be noted, however, thatprotozoanand myxozoan parasites were not recorded in most studies.
From theCambridge English Corpus
Since its description, the lifecycle of thisprotozoanparasite has eluded discovery.
From theCambridge English Corpus
The fish were infected with 18 helminth species, four myxozoans and oneprotozoan.
From theCambridge English Corpus
Because of the ubiquity of cysteine proteases in bothprotozoanand helminth parasites, they represent attractive targets for anti-parasitic drug development.
From theCambridge English Corpus
For oocysts, the numbers of sporocysts/sporozoites were used for identification; those that had not undergone sporulation were considered to beprotozoanoocysts.
From theCambridge English Corpus
Chapter 2 (8 pages) covers the parasitic protozoans.
From theCambridge English Corpus
Moreover, in certain protozoans, meiosis takes place without a previous replication of homologues, which makes chiasmatic recombination impossible.
From theCambridge English Corpus
This antigen shedding and variation response is similar to that detected in otherprotozoanparasites.
From theCambridge English Corpus
This suggests that, despite inhabiting the hostile environment of the bloodstream theseprotozoanparasites successfully evade the host immune response, leading to chronic infections.
From theCambridge English Corpus
This is likely to be the case whether the infective agent is microbial orprotozoan.
From theCambridge English Corpus
One way for bacteria to resistprotozoangrazing is the production of secondary metabolites.
From theCambridge English Corpus
Populations consist of a few major clones with some closely related ones - a structure found for several parasitic protozoans and bacteria.
From theCambridge English Corpus
These are possibilities that have long been considered forprotozoaninfections.
From theCambridge English Corpus
Diversity of both helminths and protozoans was higher in the squares.
From theCambridge English Corpus
This characteristic has also been found in otherprotozoanparasites.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/protozoan##
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更新时间：2024/12/28 0:12:39