HBMa very small living thing that has only one cell 原生动物
—protozoanadjectiveadj
Examples from the Corpus
protozoan• We expect to find the missing information in the largely unexplored group of algae and protozoans.• Aside from the larger ectoparasites, you will need access to a microscope if you are to identify bacteria and protozoans.• Fish, beetles, protozoans, and trees, will be successively more primitivebeings.• There are about 10,000 species of protozoans.• There are changes in the number and species of protozoans, algae, and bacteria.• Another parasiticprotozoan is Myxobolus, this one causing fatalinternalcysts and highly resistant to treatment.• Two protozoans that seek to reproduce sexually must first fuse, to produce one.• There are, however, several other methods of reproductionpractised by variousprotozoans on occasions.