ultracentrifuge
LowTechnical/Scientific
Definition
Meaning
A high-speed centrifuge used for separating fine particles in a liquid, typically in scientific laboratories.
The process or act of using such a device to separate particles through centrifugal force.
Linguistics
Semantic Notes
Primarily used in fields like biochemistry, molecular biology, and virology; implies very high rotational speeds compared to standard centrifuges.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling; pronunciation may vary slightly.
Connotations
Same in both variants, associated with advanced scientific research.
Frequency
Equally rare in everyday speech but common in academic and technical writing.
Vocabulary
Collocations
Grammar
Valency Patterns
ultracentrifuge for [purpose, e.g., separating particles]ultracentrifuge in [context, e.g., the lab]subject + ultracentrifuge + objectVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Rarely used; may appear in contexts related to biotechnology or pharmaceutical industries.
Academic
Common in scientific literature, especially in biology, chemistry, and physics.
Everyday
Almost never used in casual conversation.
Technical
Frequently used in laboratory settings, technical manuals, and research protocols.
Examples
By Part of Speech
verb
British English
- The team ultracentrifuged the sample to isolate the mitochondria.
- We need to ultracentrifuge this mixture before analysis.
American English
- They ultracentrifuged the solution at 100,000 rpm.
- Scientists ultracentrifuge viral particles for purification.
adverb
British English
- The proteins were separated ultracentrifugally.
- Cells are often processed ultracentrifugally in virology.
American English
- The sample was treated ultracentrifugally to remove debris.
- Viruses can be concentrated ultracentrifugally.
adjective
British English
- The ultracentrifugal force was calibrated precisely.
- Ultracentrifugal separation techniques are standard in proteomics.
American English
- Ultracentrifugal methods are used in nanoparticle research.
- The ultracentrifugal speed exceeded safety limits.
Examples
By CEFR Level
- In science class, we saw a machine called an ultracentrifuge.
- An ultracentrifuge spins very fast to separate things.
- Doctors use an ultracentrifuge to study blood components.
- The ultracentrifuge helps in separating small particles in liquids.
- The ultracentrifuge operates at speeds over 100,000 revolutions per minute.
- Researchers employed an ultracentrifuge to purify the enzyme from the mixture.
- Ultracentrifugation is critical for isolating subcellular organelles in biochemical assays.
- The analytical ultracentrifuge provided data on molecular weights through sedimentation velocity.
Learning
Memory Aids
Mnemonic
Think of 'ultra' meaning extreme and 'centrifuge' meaning to spin away from the center, so an ultracentrifuge spins things extremely fast to separate them.
Conceptual Metaphor
Separation through centrifugal force as a metaphor for isolation, purification, or refinement.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation 'ультрацентрифуга' is accurate, so no major traps; ensure correct stress in pronunciation.
Common Mistakes
- Mispronouncing with equal stress on all syllables, e.g., /ˈʌl.trə.ˈsen.trɪ.fjuːdʒ/
- Confusing it with a regular centrifuge without the 'ultra-' prefix implying higher speeds.
Practice
Quiz
What is the primary function of an ultracentrifuge?
FAQ
Frequently Asked Questions
An ultracentrifuge is a device that spins at extremely high speeds to separate particles in a liquid based on their density, commonly used in scientific research.
No, it is a technical term primarily found in scientific, academic, and laboratory contexts, and is rare in casual conversation.
Yes, it can be used as a verb, meaning to subject something to ultracentrifugation, e.g., 'to ultracentrifuge a sample,' though this usage is less common than the noun form.
Key applications include separating cellular components, purifying viruses and proteins, studying macromolecules, and conducting density gradient centrifugation in fields like biochemistry and molecular biology.