laser

(redirected from YAG laser)
Also found in: Thesaurus, Medical, Encyclopedia.
click for a larger image
laser

la·ser

 (lā′zər)
n.
1.
a. Any of several devices that emit highly amplified and coherent radiation of one or more discrete wavelengths. One of the most common lasers makes use of atoms in a metastable energy state, which, as they decay to a lower energy level, stimulate others to decay, resulting in a cascade of emitted radiation.
b. A beam of radiation emitted by a laser.
2. Sports A ball or puck sent in a straight line at high speed: shot a laser into the upper right corner of the goal.

[l(ight) a(mplification by) s(timulated) e(mission of) r(adiation).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

laser

(ˈleɪzə)
n
1. (General Physics) 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. (General Physics) any similar source producing a beam of any electromagnetic radiation, such as infrared or microwave radiation
vb (tr)
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
[C20: from light amplification by stimulated emission of radiation]

Laser

(ˈleɪzə)
n
trademark a type of dinghy, designed to be sailed by one person
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

la•ser

(ˈleɪ zər)

n.
a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms and causing them to radiate their energy in phase.
Compare maser.
[1955–60; l(ightwave) a(mplification by) s(timulated) e(mission of) r(adiation)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
click for a larger image

la·ser

(lā′zər)
A device that emits a very narrow and intense beam of light or other radiation. The light is generated by exciting the atoms of a medium, such as a crystal, gas, or liquid. The color of laser light depends on the level to which the atoms of the medium become excited. Lasers are used for many purposes, such as cutting hard substances and destroying diseased tissue.
Did You Know? A laser emits a thin, intense beam of light that can travel long distances without diffusing or spreading out very much. Almost any light beam consists of many waves traveling in roughly the same direction. In laser light, the waves are all precisely in step with each other. Such light is called coherent. Lasers produce coherent light through a process called stimulated emission. The laser contains a chamber in which atoms of a medium such as a synthetic ruby rod or a gas are excited to a high energy level. When a light wave of the correct frequency is sent through the chamber from an electronic flash tube, it makes the excited atoms emit light that is in step with the original wave. These waves then stimulate other atoms to emit more coherent light. The chamber has mirrors at both ends, so the light travels back and forth, repeatedly stimulating emission. One of the mirrors is partially transparent so that the laser beam can exit from that end.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

laser

Any device that can produce or amplify optical radiation primarily by the process of controlled stimulated emission. A laser may emit electromagnetic radiation from the ultraviolet portion of the spectrum through the infrared portion. Also, an acronym for "light amplification by stimulated emission of radiation."
Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.laser - an acronym for light amplification by stimulated emission of radiationlaser - an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
optical device - a device for producing or controlling light
photocoagulator - surgical instrument containing a laser for use in photocoagulation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
أشِعَّة ليزرلِيّزَرْ
laserlaserový
laserlaser-
laser
laser
lézer
leysigeislileysirleysir, leysigeisli
レーザー
레이저
lazerinis spausdintuvaslazeris
lāzera-lāzers
laser
laserlaserový
laser
laser
แสงเลเซอร์
la-delaser

laser

[ˈleɪzəʳ]
A. Nláser m
B. CPD laser beam Nrayo m láser
laser gun Npistola f de rayos láser
laser printer Nimpresora f láser
laser surgery Ncirujía f con láser
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

laser

[ˈleɪzər]
nlaser m
modif [technology] → laser inv; [surgery, treatment] → laser inv laser lightlaser beam nrayon m laserlaser disc laser disk ndisque m laserlaser disc player nplatine f laserlaser light nlumière f laserlaser printer nimprimante f laserlaser show nspectacle m laser
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

laser

nLaser m; (Comput: = printer) → Laserdrucker m

laser

in cpdsLaser-;
laser beam
nLaserstrahl m
laser disc
nLaserdisc f, → Laserdisk f
laser gun
nLaserkanone for -pistole f
laser medicine
nLasermedizin f
laser printer
nLaserdrucker m
laser show
nLasershow f
laser surgery
laser technology
nLasertechnik f
laser weapon
nLaserwaffe f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

laser

[ˈleɪzəʳ] nlaser m inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

laser

(ˈleizə) noun
(an instrument that produces) a narrow and very intense beam of light. The men were cutting the sheets of metal with a laser; (also adjective) a laser beam.
ˈlaser printer noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

laser

لِيّزَرْ laser laser Laser λέιζερ láser laser laser laser laser レーザー 레이저 laser laser laser laser лазер laser แสงเลเซอร์ lazer laser 激光
Multilingual Translator © HarperCollins Publishers 2009

la·ser

n. laser.
1. sigla del inglés “Light Amplification by Stimulated Emission of Radiation” (amplificación de la luz por estimulación de emisión de radiación);
2. bisturí microquirúrgico usado en la cauterización de tumores.
English-Spanish Medical Dictionary © Farlex 2012

laser

n láser m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Patient-related independent clinical risk factors for early complications following Nd: YAG laser resection of lung cancer.
Xanthelasma palpebrarum: Treatment with the Erbium: YAG laser. Lasers Surg Med.
Specimens conditioned with a Er: YAG laser exhibited areas of ablated enamel surface, with a combination of preferential dissolution of prism cores and prism peripheries, areas of hollowed prism cores adjacent to areas of demineralized prism peripheries, and crater formation (Figures 3 & 4).
Objective: To determine the mean rise in intra ocular pressure in patients undergoing high energy Nd: YAG laser posterior capsulotomy.
Urologists had at least 14 years of experience with holmium: YAG laser lithotripsy.
The main purpose of this experimental study was to evaluate efficiency of removing cariogenic bacteria during ablation of carious tissue with two different lasers: FFC Er: YAG laser and VSPt based Er:YAG.
Cui, "Comparison of YAG laser lithotripsy and extracorporeal shock wave lithotripsy in treatment of ureteral calculi: a meta-analysis," The Journal of Urology, vol.
Nd:YAG laser (VISULAS YAG III, Carl Zeiss Meditec AG, Jena, Germany) and Ocular Abraham Capsulotomy YAG Laser Lens were performed with a posterior approach.
The present study was aimed to assess the effects and complication on visual acuity following Nd: YAG laser posterior capsulotomy after ECCE with or without IOL implantation.
(18.) Weinstein C (1998) Computerized scanning Erbiumi: YAG laser for skin resurfacing.
"The combination of Ellex's Reflex technology with the industry's leading SLT treatment has resulted in a breakthrough laser system, which enables the user to perform the full range of anterior and posterior YAG laser procedures, as well as SLT," Haag-Streit UK product manager, Steve Derham, said.