injection

The act of putting medicine into a person's or animal's body with a needle.

• The nurse gave me an injection.
• Will the injection hurt?
• He needed two injections before the operation.

How to use it: an injection of something (The doctor gave her an injection of pain medicine.)

Similar words: shot, jab

Common phrases: give an injection, receive an injection, painful injection

The act of forcing a substance into something, or the substance put in this way.

• The engine uses fuel injection.
• The plastic takes shape after injection into the mould.
• Each injection of gas raised the pressure.

How to use it: injection of something into something (Injection of water into the rock increased the pressure.)

Common phrases: fuel injection, water injection, injection pressure

An amount of extra money given to help a person, business, or organization.

• The company needs a cash injection.
• A capital injection helped the bank recover.
• Without another injection of funds, the project will close.

How to use it: an injection of something into something (An injection of cash into the business saved several jobs.)

Similar words: investment, funding

Common phrases: cash injection, capital injection, injection of funds