Protozoan definition

-ŏn
Any of a subkingdom (Protozoa) of microscopic animals made up of a single cell or a group of more or less identical cells and living in water or as parasites, including ciliates, flagellates, rhizopods, and sporozoans.
noun
2
0
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.
noun
1
0
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.
noun
1
0
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.
noun
1
0
Any of a large group of one-celled organisms (called protists) that live in water or as parasites. Many protozoans move about by means of appendages known as cilia or flagella. Protozoans include the amoebas, flagellates, foraminiferans, and ciliates. Their traditional classification as the subkingdom Protozoa is still used for convenience, but it is now known that protozoans represent several evolutionarily distinct groups.
1
0
Advertisement
Of the protozoans.
adjective
1
1
(cytology) Any of the diverse group of eukaryotes, of the phylum Protozoa, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their capacity for and means of motility, as by pseudopods, flagella, or cilia.
noun
0
0
Of, pertaining to, or characteristic of a protozoan.
adjective
0
0

Other Word Forms

Noun

Singular:
protozoan
Plural:
protozoa, protozoans

Origin of protozoan

  • From New Latin Prōtozōa former subkingdom name proto– -zōa pl. of -zōon -zoon

    From American Heritage Dictionary of the English Language, 5th Edition

  • From New Latin Prōtozōa former subkingdom name proto– -zōa pl. of -zōon -zoon

    From American Heritage Dictionary of the English Language, 5th Edition

  • From New Latin Protozoa +"Ž -an

    From Wiktionary