注射
The act of injecting a liquid, especially medicine, into the body using a needle and syringe. It is a common medical procedure used for vaccinations, pain relief, or administering treatment directly into the bloodstream or muscle.
Examples
3 of 5今日、病院で注射をしました。
I got a shot at the hospital today.
インフルエンザの予防注射をお勧めします。
We recommend the influenza vaccination.
注射、全然痛くなかったよ。
The shot didn't hurt at all.
Word Family
Memory Tip
Look at the kanji: 注 (pour/focus) + 射 (shoot). Think of 'shooting' liquid into the body.
Quick Quiz
風邪をひいたので、病院で( )をしてもらいました。
Correct!
The correct answer is: 注射
Examples
今日、病院で注射をしました。
everydayI got a shot at the hospital today.
インフルエンザの予防注射をお勧めします。
formalWe recommend the influenza vaccination.
注射、全然痛くなかったよ。
informalThe shot didn't hurt at all.
静脈注射は薬物を迅速に全身へ循環させる手法である。
academicIntravenous injection is a method for rapidly circulating drugs throughout the body.
出張の前に、予防注射を受ける必要があります。
businessIt is necessary to get vaccinations before the business trip.
Word Family
Common Collocations
Common Phrases
注射を打つ
to administer/get a shot
注射嫌い
someone who hates shots
一発の注射
a single shot/injection
Often Confused With
Chūnyū is a general term for pouring/injecting any fluid into any container or system, while chūsha specifically refers to medical injections into a body.
Tenteki refers specifically to an IV drip administered over a period of time, whereas chūsha is usually a single, quick injection.
Usage Notes
It is a suru-verb, meaning it can function as a noun or a verb. While 'chūsha o suru' is common, 'chūsha o utsu' (literally 'to strike a shot') is very frequent in natural speech.
Common Mistakes
Learners often use 'tsukau' (to use) when they want to say they 'got' a shot, but you should use 'suru', '受ける' (ukeru), or 'utsu'.
Memory Tip
Look at the kanji: 注 (pour/focus) + 射 (shoot). Think of 'shooting' liquid into the body.
Word Origin
A Sino-Japanese compound: 'chū' (to pour/annotate/concentrate) and 'sha' (to shoot/radiate).
Grammar Patterns
Cultural Context
In Japan, children often receive 'hanko-chūsha' (stamp injections) for BCG vaccines, which leave a grid of small marks on the arm.
Quick Quiz
風邪をひいたので、病院で( )をしてもらいました。
Correct!
The correct answer is: 注射
Related Vocabulary
Related Words
往復
A1A round trip or travel back and forth between two locations. It refers to the act of going to a destination and returning to the starting point.
片道
A1A noun referring to a one-way trip or journey from one place to another without returning. It is most commonly used when purchasing transportation tickets or describing travel duration.
経路
A1A route or path taken to get from one place to another. It can also describe the logical steps or channels through which information or things move.
距離
A1Kyori refers to the physical amount of space between two points or objects. It can also be used figuratively to describe the psychological or emotional gap between people in a relationship.
方向
A1Refers to the physical way something is pointing or moving, as well as the abstract path or course of action taken. It is commonly used to describe spatial orientation or the general trend of a situation or project.
位置
A1Refers to the specific physical or abstract place where someone or something is situated. It is frequently used in contexts involving maps, coordinates, or the relative arrangement of objects.
到着
A1The act of reaching a specific destination after traveling. It can refer to people, vehicles, or physical items like mail and luggage arriving at a place.
経由
A1Refers to the act of traveling 'via' or 'by way of' a specific location, or passing information/documents through an intermediary. It is used to describe a route that includes a stopover or a channel through which something is transmitted.
地点
A1A specific point or location on a map or in space. It is often used to denote a precise spot for technical, geographic, or formal purposes rather than a general area.
目的地
A1目的地 refers to a specific place where someone is going or where a journey ends. It combines the words for 'purpose' and 'ground/place' to describe the physical target of movement or travel.
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