From Longman Business Dictionary
infusionin·fu·sion /ɪnˈfjuːʒən/ noun [countableC, uncountableU] the act of putting a lot of money or something else that is needed into a company, organization etcinfusion ofMost Japanese acquisitions have been followed by an infusion of capital or technology.
Despite a $65 billion government cash infusion, the big banks are not expected to turn decent profits for several years.