protozoon
Microscopic one-celled organism
Protozoon is the singular of protozoa—microscopic single-celled organisms that live in water, soil, or as parasites.
The term is largely confined to older scientific writing; modern usage favors protozoan for both singular and plural, or simply protozoa even when referring to one organism.
Shape-shifting single-celled organism
- parameciumCiliated slipper-shaped protozoan
- ciliateHair-covered single-celled organism
- flagellateTo whip or scourge
- euglenaPlant-animal hybrid microbe
vorticella · pseudopod · cytoplasm · nucleus · vacuole · cilia · flagellum · binary fission
Multinucleate protoplasmic mass
- malariaMosquito-borne parasitic infection
- giardiaWaterborne intestinal parasite
- toxoplasmaProtozoan infecting warm-blooded hosts
- entamoebaIntestine-dwelling parasitic amoeba
cryptosporidium · trichomoniasis · giardiasis · toxoplasmosis · leishmaniasis · host · vector · infection
Study of microscopic life
- protozoologyStudy of single-celled organisms
- microscopyTechnique using powerful lenses
- cultureCollective social practices
- specimenIndividual for examination
staining · identification · pathology · epidemiology · lifecycle · morphological · laboratory · clinical
Drifting marine microlife
- zooplanktonDrifting aquatic microorganisms
- freshwaterNon-saline aquatic environment
- pondSmall still body
- marineRelating to the sea
sediment · biofilm · bloom · benthic · pelagic · estuarine · brackish · filter-feeder
Single-celled eukaryotic kingdom
- apicomplexaParasitic protozoan phylum
- dinoflagellateDual-flagellated marine microorganism
- eukaryoteOrganism with nucleated cells
- kingdomMonarch's ruled territory
amoeba
Shape-shifting single-celled organism
- parameciumCiliated slipper-shaped protozoan
- ciliateHair-covered single-celled organism
- flagellateTo whip or scourge
euglena · vorticella · pseudopod · cytoplasm · nucleus · vacuole · cilia · flagellum · binary fission · conjugation
plasmodium
Multinucleate protoplasmic mass
- malariaMosquito-borne parasitic infection
- giardiaWaterborne intestinal parasite
- toxoplasmaProtozoan infecting warm-blooded hosts
entamoeba · cryptosporidium · trichomoniasis · giardiasis · toxoplasmosis · leishmaniasis · host · vector · infection · transmission
microbiology
Study of microscopic life
- protozoologyStudy of single-celled organisms
- microscopyTechnique using powerful lenses
- cultureCollective social practices
specimen · staining · identification · pathology · epidemiology · lifecycle · morphological · laboratory · clinical · diagnostic
plankton
Drifting marine microlife
- zooplanktonDrifting aquatic microorganisms
- freshwaterNon-saline aquatic environment
- pondSmall still body
marine · sediment · biofilm · bloom · benthic · pelagic · estuarine · brackish · filter-feeder · detritivore
protista
Single-celled eukaryotic kingdom
- apicomplexaParasitic protozoan phylum
- dinoflagellateDual-flagellated marine microorganism
- eukaryoteOrganism with nucleated cells