One of the mysteries of the English language finally explained.
1A phylum or group of phyla that comprises the single-celled microscopic animals, which include amoebas, flagellates, ciliates, sporozoans, and many other forms. They are now usually treated as a number of phyla belonging to the kingdom Protista.
- ‘The first edition's chapter on Protozoa recognized 7 phyla.’
- ‘This view is based on the early idea that sponges are grouped with the Protozoa.’
- 1.1as plural noun protozoa Organisms of the Protozoa group.
- ‘Microbiological contaminants, including protozoa, bacteria and viruses, are normally killed by chlorinating and other treatment.’
- ‘From 6 to 26 nucleotide repeats have been identified in the chromosomal ends of Protozoa, fungi, nematodes, plants, and vertebrates.’
- ‘Most amoebae strains were obtained from the Culture Collection of Algae and Protozoa (Windermere, United Kingdom).’
- ‘Instead, higher decomposition of organic matter might lead to higher populations of bacteria, protozoa, and organisms using these as food supply, which in turn can be consumed by zooplankton.’
- ‘What was decided among the prehistoric Protozoa cannot be annulled by Act of Parliament…’
Modern Latin (plural), from proto- ‘first’ + Greek zōion ‘animal’.
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