Used Occasionally. protozoa is one of the 30000 most commonly used words in the Collins dictionary.
It is a species of hardy deciduous flowering shrub in the genus Dasiphora (formerly Potentilla) of the family Rosaceae, native to the cool temperate and subarctic regions of the northern hemisphere, often growing at high altitudes in mountains.
Perilla leaf is used to resolve the exterior and dissipate cold; perilla stem (sugeng) has the effect of rectifying the qi and quieting the fetus and is often used for vomiting or for abdominal distention in pregnancy; perilla stem and leaf together is used to downbear qi and disperse phlegm.