protozoa
protozoa — noun
1. tiny living things with only one cell, usually found in water or inside other li
tiny living things with only one cell, usually found in water or inside other living things and often able to move by themselves
Mei observed protozoa moving through a drop of pond water.
observe protozoa in pond water
In science class, Lucía drew the protozoa she saw under the microscope.
pattern: protozoa under the microscope
Doctors tested the stream because harmful protozoa can spread stomach illness.
Warm aquarium water helped some protozoa spread across the glass.
Christopher found protozoa feeding near the roots of the water plants.
- microbe
an everyday broader word for tiny living things, not only protozoa
- microorganism
a scientific umbrella term that also includes bacteria and fungi
- parasite
narrower because it refers only to the harmful kinds that live in a host
文法句型
protozoa in pond water
observe protozoa under a microscope
harmful protozoa in the gut
用法筆記
Protozoa is usually treated as a plural form in biology writing, while one organism is often called a protozoan. The word is used for tiny animal-like organisms found in places such as pond water, wet soil, or the body.