1. to force a liquid, especially a drug or vaccine, into someone or something using a syringe
2. to add or introduce something new into a situation or process
3. to force a liquid or gas into something under pressure
Usage: technical

Examples

• The nurse injects the vaccine into the patient’s arm.
• The doctor injects insulin twice daily.
• She injects humor into every conversation.
• The coach injects new energy into the team.
• The engine injects fuel into the cylinders.
• He injects fresh ideas into the project.
• The system automatically injects coolant when needed.