
injizieren
to inject
To inject a liquid, especially a medication, into the body with a syringe and needle.
Die Ärztin wird Ihnen den Impfstoff in den Oberarm injizieren.
The doctor will inject the vaccine into your upper arm.
to inject
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to inject
To inject a liquid, especially a medication, into the body with a syringe and needle.
Die Ärztin wird Ihnen den Impfstoff in den Oberarm injizieren.
The doctor will inject the vaccine into your upper arm.

to inject
In a figurative or technical sense: to deliberately insert or introduce something into an existing system.
Der Hacker versuchte, schädlichen Code in die Datenbank zu injizieren.
The hacker tried to inject malicious code into the database.
The verb 'injizieren' (to inject) is often used with a person in the dative and a thing in the accusative. The structure is: jemandem (dative) etwas (accusative) injizieren.
Der Arzt injiziert dem Patienten ein Schmerzmittel.
The doctor injects the patient with a painkiller.
Alternatively, you can express the direction with the preposition 'in' and the accusative. The structure is then: etwas (accusative) in etwas (accusative) injizieren.
Die Krankenschwester injiziert die Flüssigkeit vorsichtig in die Vene.
The nurse carefully injects the liquid into the vein.
The context makes the meaning clear. Medical terms like 'Arzt' (doctor), 'Medikament' (medication), or 'Impfstoff' (vaccine) point to the literal meaning. Technical or economic terms like 'Code' (code), 'Daten' (data), or 'Kapital' (capital) indicate the figurative meaning.
Dem Patienten wurde eine Kochsalzlösung injiziert.
The patient was injected with a saline solution.
'Injizieren' (to inject) is a formal word used mainly in medical and specialist language. It sounds very technical and precise.
Das Kontrastmittel wird vor der Untersuchung injiziert.
The contrast agent is injected before the examination.
to inject / spray
Spritzen and injizieren can both describe introducing a liquid medication with a needle. Spritzen is common in everyday language, while injizieren sounds more technical and usually names the substance as the object. In normal conversation, spritzen is appropriate; in medical texts, injizieren is more likely.

Die Ärztin injiziert das Medikament vorsichtig in den Oberarm.
The doctor carefully injects the medication into the upper arm.
Die Ärztin spritzt dem Patienten das Medikament in den Oberarm.
The doctor injects the patient with the medication in the upper arm.