pro·to·zo·an

(prō′tə-zō′ən) also pro·to·zo·on (-ŏn′)

n. pl. pro·to·zo·ans or pro·to·zo·a (-zō′ə) also pro·to·zo·ons

Any of numerous chiefly single-celled eukaryotic organisms, most of which move about freely and ingest food, including the amoebas, ciliates, flagellates, and apicomplexans. Protozoans along with certain algae, oomycetes, and some other groups make up the protists.

[From New Latin Prōtozōa, former subkingdom name : proto- + -zōa, pl. of -zōon, -zoon.]

pro′to·zo′an, pro′to·zo′al, pro′to·zo′ic adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

protozoan

(ˌprəʊtəˈzəʊən)

n, pl -zoa (-ˈzəʊə) or -zoanspl -zoa

(Animals) Also called: protozoon any of various minute unicellular organisms formerly regarded as invertebrates of the phylum Protozoa but now usually classified in certain phyla of protoctists. Protozoans include flagellates, ciliates, sporozoans, amoebas, and foraminifers

adj

(Animals) of or relating to protozoans

[C19: via New Latin from Greek proto- + zōion animal]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pro•to•zo•an

(ˌproʊ təˈzoʊ ən)

n., pl. -zo•ans, (esp. collectively) -zo•a (-ˈzoʊ ə)
adj. n.

1. any of various one-celled protist organisms that usu. obtain nourishment by ingesting food particles rather than by photosynthesis: classified as the superphylum Protozoa encompassing separate phyla according to means of movement, as by pseudopod, flagella, or cilia.

adj.

2. of, pertaining to, or characteristic of a protozoan.

[1860–65; < New Latin Protozo(a) (see proto-, -zoa) + -an¹]

pro·to·zo·an

(prō′tə-zō′ən)

Any of a large group of one-celled organisms that have a cell nucleus and live in water or as parasites. Many protozoans move about by means of appendages known as cilia or flagella. Protozoans include the amoebas and paramecia and are classified as protists.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

protozoan

A unicellular organism such as an amoeba, belonging to the Protist kingdom.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	protozoan - any of diverse minute acellular or unicellular organisms usually nonphotosynthetic protozoon protoctist - any of the unicellular protists phylum Protozoa, Protozoa - in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers sarcodine, sarcodinian - protozoa that move and capture food by forming pseudopods rhizopod, rhizopodan - protozoa characterized by a pseudopod arcella - an amoeba-like protozoan with a chitinous shell resembling an umbrella difflugia - a protozoan with an ovoid shell of cemented sand grains ciliate, ciliated protozoan, ciliophoran - a protozoan with a microscopic appendage extending from the surface of the cell euglena - minute single-celled green freshwater organism having a single flagella; often classed as algae flagellate, flagellate protozoan, flagellated protozoan, mastigophoran, mastigophore - a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals plantlike flagellate - unicellular organisms having many characteristics of typical algae sporozoan - parasitic spore-forming protozoan cytostome - mouth of a protozoan
Adj.	1.	protozoan - of or relating to the Protozoa protozoal, protozoic

Translations

πρωτόζωο

protozoo

protozoan

[ˌprəʊtəˈzəʊən]

A. N (protozoa (pl)) [ˌprəʊtəˈzəʊə] (Bio) → protozoo m

B. ADJ → protozoico

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

protozoan

adj → einzellig

n → Protozoon nt (spec), → Urtierchen nt

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

protozoan

adj protozoario; n protozoo, protozoario

Mentioned in

References in periodicals archive

[USA], Aug 24 (ANI): Researchers have identified that infection by land-based protozoan parasites such as Toxoplasma and related parasites that come from domestic cats are common causes of illness and death of southern sea otters.

Parasite strain from cats killing sea otters

Disease caused by protozoan parasites of the genus Leishmania, named in 1901 for British Army doctor William Leishman, who developed a stain to detect the agent.

Leishmaniasis [lesh-ma'-ne-e-sis]

Panjwani Research Center for Molecular Medicine and Drugs (PCMD), University of Karachi and Medical Coordinator, Marie Adelaide Leprosy Center, Karachi, said on Wednesday that Leishmaniasis is chronic infection of skin or viscera caused by intercellular protozoan of the genus.

Treatment of Cutaneous Leishmaniasis found in local plant Bucan: Dr Soomro

on August 30, but has nothing to do with the Sultanate." Leishmaniasis is caused by the protozoan Leishmania parasites which are transmitted by the bite of infected female phlebotomine sandflies, according to the World Health Organisation (WHO).

Authorities refute reports of Leishmaniasis disease in Oman

Protozoan Parasitism: From Omics to Prevention and Control

saginata was frequently associated with other helminth and protozoan parasites in 14.6% (n=152/1041) while H .nana was reported mixed with helminths in 6.62% of the participants (Tables I and II).

Incidence of Tapeworm Infection in Human Population of Swat, Pakistan: An Occupation Based Study

The system is used to inactivate a broad range of pathogens, including viruses, bacteria, and protozoan parasites, thus reducing the risk of transfusion-transmitted infections.

Cerus announces Health Canada approval of Intercept blood system for platelets

According to MedicaLook, amoebiasis is caused by the protozoan parasite Entamoeba histolytica, and it results in an intestinal ailment known as amoebic dysentery.

Cholera and amoebiasis: Preventable infections with lethal diarrhoea symptoms

Besnoitia tarandi is a protozoan parasite that causes cysts in the skin and infection.

Caribou continue to make news: Caribou herds continue to decline, and there isn't one all-encompassing reason why

Toxoplasmosis is a worldwide distribution disease caused by Toxoplasma gondii, an obligatory intracellular protozoan. This parasite has felids as final hosts, causing acute and chronic infections in a wide variety of intermediate hosts, including humans (DUBEY, 2010).

Detection of Toxoplasma gondii in a free-ranging giant anteater/Deteccao de Toxoplasma gondii em tamandua-bandeira de vida livre

The Tri-Combo Parasite Screen test provides a complete analysis for Giardia, Cryptosporidium, and Entamoeba histolytica, the three most common intestinal protozoan parasites.

Techlab Receives FDA 510(k) Clearance to Market Tri-Combo Parasite Screen for the Diagnosis of Giardiasis, Cryptosporidiosis and Amebiasis