To steep an aromatic ingredient in hot liquid until the flavor has been extracted and absorbed by the liquid.
Teas are infusions.
Milk or cream can also be infused with flavor before being used in custards or sauces. Infusion - An infusion is the flavor that's extracted from any ingredient such as tea leaves, herbs or fruit by steeping them in a liquid such as water, oil or vinegar. Involtini - Thin slices of meat or fish which are stuffed and rolled. They may then be sauteed, grilled, or baked.