An infusion is when something is added slowly and carefully into something else.
When we talk about infusions, it's usually referring to making tea or coffee. You might see a sign at a café that says "infused water" which means they've added fruits or herbs to the water. But an infusion can also be a medical term where a liquid is added slowly and carefully into a body to give medication.
In cooking, infusions are often used when making dishes like soups or stews. For example, someone might say "I infused the soup with fresh herbs" which means they added those herbs to the soup while it was cooking so that the flavors could come together.
A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities.
Example: An extract of rooibos and chamomile makes a refreshing infusion.
