Definition of injection
1a : an act or instance of injectingb : the placing of an artificial satellite or a spacecraft into an orbit or on a trajectory; also : the time or place at which injection occurs
2 : something (such as a medication) that is injected
3 : a mathematical function that is a one-to-one mapping — compare bijection, surjection
People Are Reading
Examples of injection in a Sentence
The medicine cannot be taken orally; it must be given by injection.
an injection of a painkiller
The struggling company needed an injection of cash.
Recent Examples of injection from the Web
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For both humans and dogs, naloxone can be administered through an injection or a nasal spray.
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But the autopsy report does show that both Halyes took the drug by injection.
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With his arrival, Uber received another injection of engineers experienced with building self-driving systems.
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Death penalty opponents, and other inmates and their attorneys will be closely monitoring the execution because of the controversial sedative midazolam used by Alabama and several other states in their lethal injection drug combinations.
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Both engines have direct fuel injection and intelligent variable valve timing.
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Tommy Arthur, 75, was pronounced dead at 12:15 a.m. CDT Friday at a southwest Alabama prison after a lethal injection, authorities said.
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Jones was convicted of murder in 1984 in the death of a 15-month-old who was given a fatal injection.
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But what are lip injections doing for the careers of 13 year olds?
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'injection'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
15th Century
First Known Use of injection
15th century
INJECTION Defined for English Language Learners
injection
playDefinition of injection for English Language Learners
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: the act or process of forcing a liquid medicine or drug into someone or something by using a special needle
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: the act or process of forcing a liquid into something
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: the addition of something (such as money) that is needed to support something
INJECTION Defined for Kids
injection
playDefinition of injection for Students
: an act or instance of forcing a fluid (as a medicine) into a part of the body by using a special needle Insulin can be given by injection.
Medical Dictionary
injection
playMedical Definition of injection
1a: the act or an instance of injecting a drug or other substance into the bodyb: a solution (as of a drug) intended for injection (as by catheter or hypodermic syringe) either under or through the skin or into the tissues, a vein, or a body cavityc: an act or process of injecting vessels or tissues; also : a specimen prepared by injection
2: the state of being injected : congestion—see circumcorneal injection
Learn More about injection
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See words that rhyme with injection Spanish Central: Translation of injection Nglish: Translation of injection for Spanish speakers Britannica English: Translation of injection for Arabic speakers Britannica.com: Encyclopedia article about injection
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