Englishfor English speakers
microscopic
Adjective
—
If something is microscopic, it is very small. It is too small to be seen with the eye.
interaction
Noun
—
An interaction is when two or more things affect each other or work together.
Poor health can harm older people's participation in everyday life and social interaction.
It is necessary to understand the interactions between the plant and its surroundings.
She should have a lot of interaction with other students, or with the teacher.