B2 noun 격식체

antigen

/ˈæntɪdʒən/

An antigen is any substance, such as a toxin, virus, or bacterium, that causes the body's immune system to produce antibodies against it. It is essentially a chemical marker that the body recognizes as foreign or harmful.

예시

3 / 5
1

The doctor explained that the antigen in the vaccine would help my body prepare for future infections.

The physician clarified that the substance in the shot triggers the body to prepare for later illnesses.

2

The presence of a specific viral antigen indicates an active infection within the patient.

Finding a particular viral marker shows the patient currently has the disease.

3

Think of an antigen as a 'wanted poster' that tells your immune system who the bad guys are.

Consider this substance a signal that identifies threats to your body's defenses.

어휘 가족

명사
antigen, antigenicity
부사
antigenically
형용사
antigenic
관련
antibody
💡

암기 팁

Think of 'Anti-gen' as an 'Antibody Generator'. It is the substance that generates the need for antibodies.

빠른 퀴즈

The patient tested positive for the viral _______, meaning they are likely currently infected.

정답!

정답은: antigen

예시

1

The doctor explained that the antigen in the vaccine would help my body prepare for future infections.

everyday

The physician clarified that the substance in the shot triggers the body to prepare for later illnesses.

2

The presence of a specific viral antigen indicates an active infection within the patient.

formal

Finding a particular viral marker shows the patient currently has the disease.

3

Think of an antigen as a 'wanted poster' that tells your immune system who the bad guys are.

informal

Consider this substance a signal that identifies threats to your body's defenses.

4

The study focused on the structural characteristics of the surface antigen of the influenza virus.

academic

The research analyzed the physical traits of the outer markers on the flu virus.

5

The pharmaceutical company is investing heavily in the development of new antigen-based diagnostic kits.

business

The drug firm is funding the creation of testing tools that detect specific biological markers.

어휘 가족

명사
antigen, antigenicity
부사
antigenically
형용사
antigenic
관련
antibody

자주 쓰는 조합

antigen test a diagnostic procedure to detect viral proteins
surface antigen proteins found on the outer layer of a cell or virus
antigen response the reaction of the immune system to a foreign substance
specific antigen a unique marker belonging to a particular pathogen
antigenic drift the process of small changes in virus genes over time

자주 쓰는 구문

antigen-presenting cell

a cell that displays foreign markers to help the immune system recognize them

rapid antigen test

a quick medical test used to detect the presence of specific proteins

antigen-antibody complex

the molecule formed when an antibody binds to its target

자주 혼동되는 단어

antigen vs antibody

An antigen is the 'invader' or trigger, while an antibody is the 'soldier' produced by the body to neutralize it.

antigen vs pathogen

A pathogen is the entire harmful organism (like a germ), whereas an antigen is a specific part of that pathogen.

📝

사용 참고사항

The word is primarily used in medical and biological contexts. While it technically refers to any substance that triggers immunity, in general conversation it is most often used regarding diagnostic tests.

⚠️

자주 하는 실수

Learners often use 'antigen' and 'antibody' interchangeably; remember that 'gen' in antigen implies it 'generates' an immune response.

💡

암기 팁

Think of 'Anti-gen' as an 'Antibody Generator'. It is the substance that generates the need for antibodies.

📖

어원

Derived from the French 'antigène', a contraction of 'antisérum' and 'gène' (producing).

문법 패턴

Countable noun (plural: antigens) Often used as a noun adjunct (e.g., antigen detection)
🌍

문화적 맥락

The term became widely known by the general public globally during the COVID-19 pandemic due to the prevalence of 'rapid antigen tests'.

빠른 퀴즈

The patient tested positive for the viral _______, meaning they are likely currently infected.

정답!

정답은: antigen

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