Inject  v. 1 a (usu. Foll. By into) drive (a solution, medicine, etc.) By or as if by a syringe. B (usu. Foll. By with) fill (a cavity etc.) By injecting. C administer medicine etc. To (a person) by injection. 2 place (a quality, money, etc.) Into something.  injection n. Injector n. [latin injicere -ject- from jacio throw]