| Noun | 1. | infusion - a solution obtained by steeping or soaking a substance (usually in water)black catechu, catechu - extract of the heartwood of Acacia catechu used for dying and tanning and preserving fishnets and sails; formerly used medicinally solution - a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water" pancreatin - extract from the pancreas of animals that contains pancreatic enzymes; used to treat pancreatitis and other conditions involving insufficient pancreatic secretions | |
| 2. | infusion - the process of extracting certain active properties (as a drug from a plant) by steeping or soaking (usually in water)extraction - the process of obtaining something from a mixture or compound by chemical or physical or mechanical means | |
| 3. | infusion - (medicine) the passive introduction of a substance (a fluid or drug or electrolyte) into a vein or between tissues (as by gravitational force) | |
| 4. | infusion - the act of infusing or introducing a certain modifying element or quality; "the team's continued success is attributable to a steady infusion of new talent"change of state - the act of changing something into something different in essential characteristics | |