infusion

Short definition from Wiktionary

Noun

1. 1
   A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities.
2. 2
   The act of steeping or soaking a substance in liquid so as to extract medicinal or herbal qualities.
3. 3
   The act of installing a quality into a person.
4. 4
   A giving of money or other resources, typically a large amount, to an organization.
5. 5
   The act of dipping into a fluid.
6. 6
   The administration of liquid substances directly into a vein for medical purposes; perfusion.