western blot: meaning, definition, pronunciation and examples
C2technical, formal
Quick answer
What does “western blot” mean?
A laboratory technique used to detect specific proteins in a sample of tissue homogenate or extract.
Audio
Pronunciation
Definition
Meaning and Definition
A laboratory technique used to detect specific proteins in a sample of tissue homogenate or extract.
An immunoblotting technique where proteins are separated by gel electrophoresis, transferred to a membrane, and probed with antibodies to identify target proteins.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or procedural differences. Spelling conventions of related terms may differ (e.g., analyse/analyze).
Connotations
Identical technical and formal connotations in scientific contexts.
Frequency
Used with identical high frequency in biomedical and life sciences academia and industry in both regions.
Grammar
How to Use “western blot” in a Sentence
The scientist performed a western blot [on the lysate].The western blot [for the protein] was conclusive.The presence of the antigen was confirmed [via/by] western blot.Vocabulary
Collocations
Examples
Examples of “western blot” in a Sentence
adjective
British English
- The western blot data were inconclusive.
- We followed the standard western blot protocol.
American English
- The western blot data was inconclusive.
- We followed the standard western blot protocol.
Usage
Meaning in Context
Business
Rare, except in biotech/pharma R&D reports or quality control documentation.
Academic
Very high frequency in life sciences, biochemistry, molecular biology, and medical research papers.
Everyday
Virtually zero usage.
Technical
High frequency, the default term for this specific protein detection method.
Vocabulary
Synonyms of “western blot”
Strong
Neutral
Weak
Vocabulary
Antonyms of “western blot”
Watch out
Common Mistakes When Using “western blot”
- Using 'western blot' as a verb (e.g., 'I will western blot the sample'). The correct phrasing is 'perform/run/do a western blot'.
- Confusing it with 'Eastern blot' (a less common, unrelated technique).
- Incorrect capitalisation: it's not a proper noun, so 'western blot' is standard.
FAQ
Frequently Asked Questions
It's a playful continuation of the naming scheme: Southern blot (DNA, named after Edwin Southern), Northern blot (RNA), and then Western blot (proteins).
No, it is strictly a noun. The correct usage is to 'perform', 'run', or 'do' a western blot.
Yes, but it's a niche technique for post-translational modifications of proteins and is far less common than Western, Southern, or Northern blots.
The key reagent is a primary antibody that specifically binds to the target protein, which is then visualised using a detection system.
A laboratory technique used to detect specific proteins in a sample of tissue homogenate or extract.
Western blot is usually technical, formal in register.
Western blot: in British English it is pronounced /ˌwes.tən ˈblɒt/, and in American English it is pronounced /ˌwes.tərn ˈblɑːt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “The gold standard for detection”
- “A blot on the record (informal, contextual pun)”
Learning
Memory Aids
Mnemonic
Think of 'western' as the last in the cardinal direction series of blots: South(DNA), North(RNA), West(Protein). Or: A cowboy (western) 'blots' out a specific protein with his antibody lasso.
Conceptual Metaphor
A 'wanted poster' (blot) for a specific protein in the 'wild west' of a complex cellular mixture.
Practice
Quiz
What is the primary purpose of a western blot?