antibody
C1Formal / Technical
Definition
Meaning
A protein produced by the body's immune system that recognizes and binds to specific foreign substances (antigens), such as bacteria or viruses, to help destroy them.
In a figurative sense, it can refer to any protective or counteracting force, idea, or element. For example, in social or ideological contexts, an 'antibody' might be a collective response to a harmful trend.
Linguistics
Semantic Notes
The term is most precise in biological and medical contexts. Its figurative use is a metaphor, understood by analogy to the biological function.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Spelling and pronunciation are consistent across variants.
Connotations
Identical. Purely technical/medical in primary use.
Frequency
Equally frequent in medical and scientific discourse in both regions. Figurative use is less common but equally understood.
Vocabulary
Collocations
Grammar
Valency Patterns
antibody to/against + [antigen]antibody + [that/which] + verbantibody + produced by + [organism/system]Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “social antibody (figurative)”
Usage
Context Usage
Business
Rare. Possibly in biotech/pharma: 'The company's new drug is a monoclonal antibody.'
Academic
Common in life sciences, medicine, immunology.
Everyday
Common since the COVID-19 pandemic, especially in discussing tests and immunity: 'My antibody test came back positive.'
Technical
Core term in immunology with precise subcategories (IgG, IgM, monoclonal, etc.).
Examples
By Part of Speech
verb
British English
- The treatment aims to antibody the viral particles.
- The serum was antibodyed in the lab.
American English
- Researchers are trying to antibody the toxin.
- The process antibodies the antigen.
adverb
British English
- The cells reacted antibody strongly.
- The protein binds antibody specifically.
American English
- The agent functions antibody to the virus.
- It was designed to work antibody.
adjective
British English
- The antibody response was robust.
- We analysed the antibody levels.
American English
- The antibody test was negative.
- They measured antibody production.
Examples
By CEFR Level
- The doctor tested her blood for antibodies.
- Vaccines help your body make antibodies.
- After the infection, he had high levels of antibodies in his system.
- The antibody test can show if you've had the virus before.
- Monoclonal antibodies are laboratory-made proteins that mimic the immune system's ability to fight pathogens.
- The presence of specific antibodies confirms exposure to the disease.
- The novel therapeutic antibody demonstrated high affinity for its target antigen in pre-clinical trials.
- Seroprevalence studies estimate the proportion of a population with detectable antibodies to a given pathogen.
Learning
Memory Aids
Mnemonic
Think of ANTI-BODY. It's a substance your body makes to work AGAINST (anti) harmful invaders.
Conceptual Metaphor
BODYGUARD / KEY. The antibody is a bodyguard that targets a specific intruder. Or, it's like a key (antibody) designed to fit only one specific lock (antigen).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'антитело' for figurative use unless context strongly supports the metaphor. In English, the figurative use is less established.
Common Mistakes
- Using 'antibody' to mean the virus/bacteria itself (confusing it with 'antigen').
- Saying 'my body has antibody' (non-count) instead of 'my body has antibodies' (usually plural).
Practice
Quiz
What is the primary function of an antibody?
FAQ
Frequently Asked Questions
A vaccine stimulates your body to produce its own antibodies. An antibody (or antibody treatment) is the protective protein itself, sometimes given directly as a treatment.
Yes. Antibody levels can wane over time, or a pathogen might mutate enough that existing antibodies are less effective.
Yes, typically used in the plural (antibodies) when referring to them generally. You can refer to a single type as 'an antibody'.
It refers to antibodies that are identical clones of a unique parent cell, made in a lab. They are designed to target a single, specific antigen.