laser
C1Technical/Formal in scientific contexts; informal in common extended uses (e.g., 'laser-focused').
Definition
Meaning
A device that emits a highly focused, narrow, and powerful beam of light generated by stimulated emission of radiation.
Any application, system, or technology using such beams (e.g., laser surgery, laser pointer, laser printer). Also used metaphorically to describe intense focus or precision.
Linguistics
Semantic Notes
Originally an acronym (Light Amplification by Stimulated Emission of Radiation), now a fully lexicalized noun. Can be used attributively as a modifier (laser beam) and has limited verb use in technical contexts.
Dialectal Variation
British vs American Usage
Differences
Spelling and meaning are identical. Pronunciation differs slightly in the vowel of the first syllable.
Connotations
Identical across varieties. No regional connotative differences.
Frequency
Slightly higher frequency in American media due to prevalence in tech and medical marketing.
Vocabulary
Collocations
Grammar
Valency Patterns
VERB + laser: use/employ/operate a laserlaser + VERB: cut/scan/target/removelaser + NOUN: beam/light/sight/systemVocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “laser-focused”
- “laser-like precision”
Usage
Context Usage
Business
'The company invested in new laser cutting equipment to improve precision.'
Academic
'The study utilized a helium-neon laser to measure particulate dispersion.'
Everyday
'I used a laser pointer during my presentation to highlight key points on the map.'
Technical
'The femtosecond laser pulses were used for non-linear optical spectroscopy.'
Examples
By Part of Speech
verb
British English
- The surgeon will laser the tumour with great precision.
- The machine lasers the barcode for instant reading.
American English
- The dermatologist will laser off the skin tags.
- The system lasers an identification mark onto each part.
adjective
British English
- The laser printer needs a new toner cartridge.
- He underwent laser eye surgery last week.
American English
- The laser engraving on the trophy looks fantastic.
- She bought a laser level for her home renovation project.
Examples
By CEFR Level
- The cat chased the red dot from the laser pointer.
- My dad has a laser printer in his office.
- Doctors can use a laser for some types of surgery.
- The presentation was good, but the laser pointer didn't work.
- Laser technology has revolutionised manufacturing and medicine.
- The archaeologist used a laser scan to create a 3D model of the ruins.
- The research hinges on the ability to stabilise the laser's frequency.
- His critique was delivered with laser-like precision, targeting every flaw in the argument.
Learning
Memory Aids
Mnemonic
LASER: Light Amplified, Shoots Extremely Straight. Remember it as a straight, powerful line of light.
Conceptual Metaphor
PRECISION/INTENSITY IS A LASER (e.g., 'laser-focused attention', 'laser-like accuracy').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'лазерный принтер' (laser printer) vs. 'струйный принтер' (inkjet printer). The word is a direct borrowing, but be mindful of collocations.
Common Mistakes
- Using 'laser' as a verb in non-technical contexts (e.g., 'I will laser the document' is non-standard). Confusing 'laser' with 'maser' (a similar device using microwaves).
Practice
Quiz
What does 'laser' stand for?
FAQ
Frequently Asked Questions
Yes, it originated as the acronym for 'Light Amplification by Stimulated Emission of Radiation'. It is now a standard English word.
Yes, in technical and medical contexts (e.g., 'to laser a tumour'), but its verb use is less common in everyday speech.
Laser light is coherent (all waves are in phase), monochromatic (single wavelength), and directional (forms a narrow beam). Ordinary light is incoherent, polychromatic, and spreads in all directions.
Yes, many types exist, classified by their gain medium: gas lasers (e.g., He-Ne), solid-state lasers (e.g., ruby), diode lasers (common in pointers), and fibre lasers, among others.