titer: meaning, definition, pronunciation and examples
Low/C2Technical, Scientific, Medical
Quick answer
What does “titer” mean?
The concentration of a substance in a solution, as determined by titration.
Audio
Pronunciation
Definition
Meaning and Definition
The concentration of a substance in a solution, as determined by titration; specifically, the lowest concentration or dilution at which a reaction (e.g., agglutination, neutralization) can be detected.
In medicine and immunology, it commonly refers to the measurement of the amount of antibodies or the strength of an immune response in a blood sample, indicating immunity or infection.
Dialectal Variation
British vs American Usage
Differences
The standard UK English spelling is 'titre'. The US English spelling is 'titer'. Pronunciation is identical.
Connotations
Identical in both varieties; purely technical.
Frequency
Equally rare in general language, but standard within the relevant scientific fields in both regions.
Grammar
How to Use “titer” in a Sentence
The titer of [SUBSTANCE] (e.g., antibodies) was [VALUE].A [ADJ] titer indicates [RESULT].To measure/determine the titer of [SAMPLE].Vocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used.
Academic
Common in medical, biological, and chemical research papers and textbooks.
Everyday
Extremely rare; only used when discussing specific medical test results.
Technical
The primary domain. Used in laboratory reports, immunology, virology, serology, and quality control.
Vocabulary
Synonyms of “titer”
Neutral
Watch out
Common Mistakes When Using “titer”
- Misspelling as 'titre' in American English contexts.
- Using it as a verb (e.g., 'to titer a sample' – correct verb is 'to titrate').
- Pronouncing it like 'tighter' (/ˈtaɪtər/).
FAQ
Frequently Asked Questions
No, the verb is 'to titrate'. 'Titer' is a noun referring to the result or measurement of titration.
It indicates a high concentration of the substance being measured, e.g., many antibodies present in the blood, which often signifies a strong immune response or recent/existing infection.
They are the same word with different regional spellings. 'Titer' is American English, 'titre' is British English.
Yes, but rarely. It originates from analytical chemistry ('titration'), so it can be used in any context involving determining concentration via titration, though medicine/immunology is its most common modern use.
The concentration of a substance in a solution, as determined by titration.
Titer is usually technical, scientific, medical in register.
Titer: in British English it is pronounced /ˈtʌɪtə/, and in American English it is pronounced /ˈtaɪdər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'TIter' as a 'TITration numbER' – the number from a titration test.
Conceptual Metaphor
MEASUREMENT IS A QUANTITY (expressed as a ratio or dilution).
Practice
Quiz
In which context is the word 'titer' most appropriately used?