Infusion

noun

1. A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities.

   "An extract of rooibos and chamomile makes a refreshing infusion."

2. The act of steeping or soaking a substance in liquid so as to extract medicinal or herbal qualities.
3. The act of installing a quality into a person.
4. The act of dipping into a fluid.
5. (medicine) The administration of liquid substances directly into a vein for medical purposes; perfusion.