Word forms: plural, 3rd person singular presenttense lasers, present participle lasering, past tense lasered
1. countable noun
A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and telecommunications.
...new laser technology.
Researchers realised that a tunable laser beam might be useful in surgery.
2. countable noun
A laser is a machine that produces a laser beam.
...the first-ever laser, built in 1960.
3. verb
If you have part of your body lasered, you have it treated using a laser.
I had my eyes lasered. I was shortsighted and now I'm not. [have noun VERB-ed]
British men are shaving, waxing and lasering their body hair like never before. [VERB noun]
laser in British English
(ˈleɪzə)
noun
1.
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium. The photons involved in the emission process all have the same energy and phase so that the laser beam is monochromatic and coherent, allowing it to be brought to a fine focus
2.
any similar source producing a beam of any electromagnetic radiation, such as infrared or microwave radiation
verb(transitive)
3.
to use a laser on (something), esp as part of medical treatment
4. (often foll by off)
to remove (a tattoo, fat, etc) with laser treatment
See also maser
Word origin
C20: from light amplification by stimulated emission of radiation
Laser in British English
(ˈleɪzə)
noun
trademark
a type of dinghy, designed to be sailed by one person
laser in American English
(ˈleɪzər)
US
noun
a device containing a substance the majority of whose atoms or molecules can be put into an excited energy state, allowing the substance to emit coherent light of a precise wavelength in an intense, narrow beam
A laser is a device for producing a beam of light that can measure things or heat things at very high temperatures.
Lasers allow energy to be released in very short time intervals, and their beams can befocused on very small spots.
The scanner uses a laser to find a set of 3D points that define the object's shape.
A laser is a device for producing a beam of light that can measure things or heat thingsat very high temperatures.
Examples of 'laser' in a sentence
laser
The red peaks dancing across the screen represent insects crossing the laser beam.
Smithsonian Mag (2017)
He couldn't see properly either and had to have laser eye surgery.
The Sun (2016)
With the relative lengths of the arms changed, the interference of the laser light will no longer be perfect.
Smithsonian Mag (2017)
It's not uncommon to go in for Botox and find yourself facing a laser machine.
Times, Sunday Times (2016)
The company uses laser scans to pick the best fibres for length, strength, elasticity and softness.
Times, Sunday Times (2016)
This guy that I watched - his eyes were like laser beams.
The Sun (2016)
It was also quick to expand into laser eye surgery.
Times, Sunday Times (2013)
She wanted to use the site to fund production of her laser bike light invention.
Times, Sunday Times (2015)
The head is a laser lamp focused to a pinpoint on a revolving metal disk.
Schneider, Hermann & Schneider, Leo The Harper Dictionary of Science in Everyday Language (1988)
She faces five months of laser work to remove the tattoos.
The Sun (2007)
We see this ending in laser removal.
The Sun (2011)
Luckily they used a laser beam to transport her.
The Sun (2012)
She recently began a pioneering form of laser treatment for her scarring.
Times, Sunday Times (2016)
There is also the possibility of reconstructive surgery or laser treatment on her cheeks.
The Sun (2010)
The system relies on infrared lasers to detect electronic light sensors in these cameras.
Times, Sunday Times (2009)
There are all the technical special effects that one would expect from the newest laser technology.
Times, Sunday Times (2007)
Special lasers identify seismic faults in forbidding mountain ranges.
Times, Sunday Times (2007)
The lasers that were used burned her face until she screamed.
The Sun (2016)
Laser treatments will remove both fine and large thread veins quickly and effectively.
The Sun (2010)
Like a laser beam through the seam of clouds.
Oxenhorn, Harvey Tuning the Rig: A Journey to the Arctic (1990)
It will also recommend new investment to research the laser treatment for a wide range of cancers.
Times, Sunday Times (2010)
Imagine that you wanted to get laser eye surgery.
Times, Sunday Times (2013)
It was cut using laser machines, which allow architects to experiment with weird and wonderful shapes.
Times, Sunday Times (2015)
Laser surgery usually costs around 1,000 per eye.
The Sun (2010)
At a critical point along its trajectory, each pellet would be hit by laser light.
Times, Sunday Times (2007)
That obviously makes for great success: that laser focus.
Times, Sunday Times (2013)
In 5 per cent of cases there is a risk of permanent scarring after laser tattoo removal.
Times, Sunday Times (2007)
Since then, laser technology has advanced rapidly.
Times, Sunday Times (2008)
My first degree was in straight mechanical engineering and in my final year I studied laser cutting.
Times, Sunday Times (2007)
In other languages
laser
British English: laser /ˈleɪzə/ NOUN
A laser is a narrow beam of concentrated light produced by a special machine.
...new laser technology.
American English: laser
Arabic: لِيّزَرْ
Brazilian Portuguese: laser
Chinese: 激光
Croatian: laser
Czech: laser
Danish: laser
Dutch: laser
European Spanish: láser
Finnish: laser
French: laser
German: Laser
Greek: λέιζερ
Italian: laser
Japanese: レーザー
Korean: 레이저
Norwegian: laser
Polish: laser
European Portuguese: laser
Romanian: laser
Russian: лазер
Latin American Spanish: láser
Swedish: laser
Thai: แสงเลเซอร์
Turkish: lazer
Ukrainian: лазер
Vietnamese: laser
All related terms of 'laser'
laser beam
a narrow beam of light produced by a laser
laser card
a plastic card with integrated circuits used for storing and processing computer data
laser disc
A laser disc is a shiny flat disk which can be played on a machine which uses lasers to convert signals on the disk into television pictures and sound of a very high quality.
laser light
light which is generated by a laser
laser proof
a print proof of an element of a page printed out on a laser printer , so as to give an almost accurate preview of the final printout
laser show
a display of coloured laser lights for entertainment purposes, often accompanying a music concert , etc
excimer laser
a type of gas laser that emits powerful pulses of ultraviolet radiation used in weapons , industrial, or medical research : this radiation is emitted as the short-lived excimers , dimeric molecules that can only exist when a component is energized into an excited state, return to their ground states
laser-guided
(of a missile, etc) guided with the use of a laser beam
laser printer
A laser printer is a computer printer that produces clear words and pictures by using laser beams.
laser surgery
surgery where a laser beam is used to cut tissue rather than a scalpel . Often used on the eyes to correct short-sighted or long-sighted vision .
laser weapon
weapons which make use of lasers or lasers used as weapons
laser-guidance
a technique of guiding a missile , etc, using a laser beam
laser machining
Laser machining is a process in which material is removed from a surface using light from a laser.
laser treatment
any of various medical and surgical techniques using lasers , such as the removal of small growths
laser ring gyro
a system of aerial navigation in which rotation is sensed by the measuring of the frequency shift of laser light in a closed circuit in a horizontal plane
laserdisc
a disk similar in size to a long-playing record, on which data is stored in pits in a similar way to data storage on a compact disc , used esp for storing high-quality video
intelligent card
a plastic card with integrated circuits used for storing and processing computer data
smart card
A smart card is a plastic card which looks like a credit card and can store and process computer data.