infusion

in·fusion

noun \in-ˈfyü-zhən\

Definition of INFUSION

1

a : the introducing of a solution (as of glucose or salt) especially into a vein; also : the solution so used b (1) : the steeping or soaking usually in water of a substance (as a plant drug) in order to extract its soluble constituents or principles—compare decoction 1 (2) : the liquid extract obtained by this process

2

: a watery suspension of decaying organic material <culturing soil amebas in lettuce infusion>