Forcing a liquid (usually medicine) into the body using a needle and syringe, or the liquid medicine itself being introduced this way.
From Latin 'injectus' (thrown in), from 'in-' (in) + 'jacere' (to throw). The medical procedure was named in the 1600s to describe the 'throwing in' of medicine.
The verb 'inject' literally means 'to throw in'—and early doctors really did think of it as throwing medicine into the body, which is why syringe comes from Greek 'syrinx' (pipe or tube), like a mini catapult.
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