antibody - Master This Word
Master this word with our 5-step learning method – Learn English in English
antibody Word Meanings
- a substance produced by the immune system to fight infections
- a protein that helps neutralize pathogens
- a molecule that recognizes and binds to specific antigens
antibody Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
antibody Phonetic & Pronunciation
UK
/ˈæntiˌbɒdi/
US
/ˈæntiˌbɑdi/
antibody Word Etymology
antibody: anti- (against) + body (substance). Origin: Greek → Latin → English. Memory: Imagine a knight in armor (the body) fighting off invaders with shields (the antibodies) that reject any harmful germs.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
An antibody is a Y-shaped protein produced mainly by plasma cells in the immune system. Each antibody recognizes a specific antigen—particles such as viruses, bacteria, or toxins—and binds to it to neutralize the threat or label it for attack by other immune cells. Antibodies come in several classes, like IgG and IgA, serving different roles in blood, tissues, and secretions. It’s crucial to distinguish antibody from antigen: the antigen is the target, the antibody is the response. Common phrases include antibody response, neutralizing antibodies, monoclonal antibodies used in therapies, and measurements such as antibody titers in labs.
Usage Reminders
- Antibody vs antigen: remember antibodies respond to antigens, not vice versa.
- Watch singular/plural: antibody, antibodies.
- Common phrases: antibody response, neutralizing antibodies, monoclonal antibodies.
- Be careful with 'antibody' vs 'antibody test' vs 'antibody titer'.
- Pronounce: AN-ti-bod-ee, with the stress on the first or second syllable depending on dialect.
Common Misconceptions
- Antibody is the same as an antigen.
- Antibodies only target viruses.
- All antibodies are the same regardless of class (IgG vs IgA).
- Antibodies cure infections instantly without immune system help.
- Antibody tests measure current infection, not immunity.
Thinking Differences
For English learners, this entry emphasizes keeping the two related terms distinct (antibody vs antigen) and recognizing key collocations like antibody response and antibody titer, which are often taught together but can be misused in everyday talking.
Learning Tips
- Practice the pronunciation of antibody, stressing the second syllable.
- Keep antigen and antibody separate in your notes and examples.
- Learn common collocations: antibody response, neutralizing antibodies, antibody titer.
- Use both singular and plural forms: antibody vs antibodies.
- Review lab contexts: titers, serology, and monoclonal antibodies.
- Read simple medical articles to see antibodies in context.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of 'antibody'?
A.A type of white blood cell
B.A protein that fights against infections
C.A hormone that regulates sleep
D.A type of bacteria
Step 2: Usage
In which of the following sentences is 'antibody' used correctly?
A.She studied antibodies in her math class.
B.The doctor prescribed antibiotics to fight off the virus.
C.The child's antibody levels were low, indicating a weakened immune system.
D.His antibody to the situation surprised everyone.
Step 3: Similar Words
Which of the following words is most similar to 'antibody'?
A.Antiseptic
B.Antibiotic
C.Antithesis
D.Antecedent
Step 4: Opposite Words
Which of the following is the opposite of 'antibody'?
A.Antigen
B.Virus
C.Immunity
D.Protein
Step 5: Mastery
How are antibodies important in protecting the body from diseases?
A.By attacking healthy cells
B.By neutralizing harmful invaders
C.By triggering allergies
D.By causing inflammation
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