ultramicrotome
Very LowTechnical/Scientific
Definition
Meaning
A precision instrument used to cut extremely thin sections of material, typically for examination under an electron microscope.
May also refer to the technique of ultramicrotomy, used in fields like biology, materials science, and nanotechnology for sample preparation.
Linguistics
Semantic Notes
Compound noun from 'ultra-' (beyond) + 'micro-' (small) + '-tome' (cutting instrument); specifically denotes instruments capable of cutting sections thinner than standard microtomes.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling; minor variations in pronunciation (e.g., vowel sounds in '-tome').
Connotations
Identical in both dialects; strictly technical with no additional connotations.
Frequency
Equally rare and specialized in both British and American English, primarily used in academic and technical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
N + be + used to + V (e.g., The ultramicrotome is used to cut sections.)V + N + for + N (e.g., Use the ultramicrotome for sample preparation.)N + of + N (e.g., Sections from the ultramicrotome)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not applicable; rarely used outside technical contexts.
Academic
Common in scientific literature, especially in biology, medicine, and materials science.
Everyday
Virtually never used in everyday conversation.
Technical
Frequently used in laboratories and research settings involving electron microscopy.
Examples
By Part of Speech
verb
British English
- The technician will ultramicrotome the specimen to obtain thin sections for analysis.
American English
- Researchers often ultramicrotome tissues to study cellular structures.
adverb
British English
- The sample was cut ultramicrotomically to achieve nanometer thickness.
American English
- They prepared the material ultramicrotomically for high-resolution imaging.
adjective
British English
- The ultramicrotome knife requires careful maintenance.
American English
- Ultramicrotome sections are critical for transmission electron microscopy.
Examples
By CEFR Level
- This is an ultramicrotome.
- It cuts very thin slices.
- Scientists use an ultramicrotome in the laboratory.
- The ultramicrotome helps us see tiny details.
- An ultramicrotome is essential for preparing biological samples for electron microscopy.
- Without an ultramicrotome, obtaining thin sections would be challenging.
- Advanced ultramicrotomy techniques employ diamond knives to section specimens at thicknesses below 100 nanometers.
- The ultramicrotome's precision enables high-resolution imaging in materials science research.
Learning
Memory Aids
Mnemonic
ULTRA (extremely) + MICRO (small) + TOME (cutting) = an instrument that cuts extremely small slices.
Conceptual Metaphor
A scalpel for the nanoscale world.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'микротом' (microtome), which is a broader term; 'ультрамикротом' is more specific.
- The prefix 'ультра-' might be misinterpreted as 'super' in casual contexts, but here it denotes extreme thinness.
Common Mistakes
- Misspelling as 'ultramicrotomb' or 'ultramicrotomee'.
- Confusing it with a standard microtome, which cuts thicker sections.
Practice
Quiz
What is the primary function of an ultramicrotome?
FAQ
Frequently Asked Questions
An ultramicrotome is a precision instrument used to cut ultra-thin sections of materials, typically for examination under electron microscopes.
An ultramicrotome can cut sections much thinner than a standard microtome—often in the nanometer range—while microtomes are used for thicker sections, usually in micrometers.
It is commonly used in biology, medicine, materials science, and nanotechnology for sample preparation in electron microscopy.
Technicians, researchers, and scientists in laboratories and research institutions, especially those working with electron microscopy, operate ultramicrotomes.