laser

C1 CET-4 Oxf 5000 高中 FREQ #5255 ★★☆☆☆

n. 激光 [计] 激光器

发音

UK /ˈleɪz.ə(ɹ)/
UK /ˈleɪs.ə(ɹ)/
其它
US /ˈleɪzɚ/

词形变化

lasers 复数 lasered lasering lasers 三单 lasers lasering 现在分词 lasered 过去式 lasered 过去分词

别名

lasar

释义与例句

n. C1 Oxf 5000
  1. 1.

    A device that produces a monochromatic, coherent beam of light.

    可数 不可数
  2. 2.

    A beam of light produced by such a device; a laser beam.

    可数 不可数
  3. 3.

    A laser printer.

    可数 不可数
  4. 4.

    Ellipsis of laser hair removal.

    不可数 医学 可数

    I've still got a few more sessions of laser to get rid of the rest of my facial hair.

  5. 1.

    A gum resin obtained from certain umbelliferous plants.

  6. 2.

    Such a plant.

v.
  1. 1.

    To cut, destroy or treat with a laser.

    及物

    I'm having my eyes lasered to correct my astigmatism.

  2. 2.

    To throw or kick with laser-like precision.

    非正式 及物 体育
  3. 3.

    To point a laser at an aircraft, potentially disorienting the pilot or pilots.

    航空 商务 工程

词汇关系

名词

整体词 1

photocoagulator

相关短语

laser pointer laser cooling laser beam [激光] 激光束 laser beams (laser-beam 的复数) [激光] 激光束 laser pen laser eye surgery laser printer [计][印刷] 激光印刷机 laser printers (laser-printer 的复数) [计][印刷] 激光印刷机 laser diode [计] 激光二极管 laser gun 激光枪 laser guns laser diodes laser tag laser disc n. 激光影碟, 雷射影碟 laser pens

词源

Etymology tree Proto-Indo-European *lewk-der. Proto-Germanic *leuhtaz Proto-West Germanic *leuht Old English lēoht Middle English light English light Latin amplus Proto-Indo-European *dʰeh₁-der. Proto-Italic *-fakāō Latin -ficō Latin amplificō Proto-Indo-European *-tisder. Proto-Italic *-tjō Latin -tiō Latin amplificātiōlbor. English amplification Latin stimulus Latin stimulo Latin stimulatusbor. English stimulate English -ed English stimulated English emission English radiation English LASER English laser From LASER, acronym of light amplification by stimulated emission of radiation. Coined by American physicist Gordon Gould in 1957. Originally called an optical maser.

来源：wiktionary