Englishfor English speakers
molecular
Adjective
—
If something is molecular it is about molecules.
Molecular weight is the mass of a molecule.
activity
Noun
—
When a person or animal has activity, it is active or lively.
The sleeping dog did not show much activity.
—
When you have a function to do, you have an activity.
The child has many after-school activities.
She participates in women's rights activities.