In-fū'sion, n.
(in-fū'zhun), n. [Lat. infusio, Fr. & Sp. infusion, It. infusione, Pr. infuzio, enfuzio. See INFUSE, v.]
Sense 1. The act of infusing, pouring in, or instilling; instillation; as, the infusion of good principles into the mind; the infusion of ardor or zeal.
Sense 2. That which is infused or poured in; suggestion. His folly and his wisdom are of his own growth, not the echo or infusion of other men. Swift.
Sense 3. (Pharmacy.) (a.) The act or process of steeping any insoluble substance in water in order to extract its virtues. (b.) The liquid obtained by this process.
Sense 4. The act of plunging beneath the surface of a fluid; immersion. [Obs.] Jortin.