optical activity definición, optical activity significado | diccionario de inglés definición

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Collins

optical activity

  

      n   the ability of substances that are optical isomers to rotate the plane of polarization of a transmitted beam of plane-polarized light  
Diccionario de inglés definición  
Collins
optical  
      adj  
1    of, relating to, producing, or involving light  
2    of or relating to the eye or to the sense of sight; optic  
3    (esp. of a lens) aiding vision or correcting a visual disorder  
  optically      adv  


optical activity  
      n   the ability of substances that are optical isomers to rotate the plane of polarization of a transmitted beam of plane-polarized light  
optical bench  
      n   an apparatus for experimentation in optics, typically consisting of an adjustable arrangement of light source, lenses, prisms, etc.  
optical character reader  
      n   a computer peripheral device enabling letters, numbers, or other characters usually printed on paper to be optically scanned and input to a storage device, such as magnetic tape. The device uses the process of optical character recognition,   (Abbrev. (for both reader and recognition))    OCR  
optical crown  
      n   an optical glass of low dispersion and relatively low refractive index. It is used in the construction of lenses  
optical density  
      n     (Physics)      the former name for       reflection density       transmission density  
optical disc  
      n     (Computing)   an inflexible disc on which information is stored in digital form by laser technology,   (Also called)    video disc  
optical double star  
      n   two stars that appear close together when viewed through a telescope but are not physically associated and are often separated by a great distance  
   Compare       binary star  
optical fibre  
      n   a communications cable consisting of a thin glass fibre in a protective sheath. Light transmitted along the fibre may be modulated with vision, sound, or data signals  
   See also       fibre optics  
optical flint  
      n   an optical glass of high dispersion and high refractive index containing lead oxide. They are used in the manufacture of lenses, artificial gems, and cut glass,   (Also called)    flint glass  
optical glass  
      n   any of several types of clear homogeneous glass of known refractive index used in the construction of lenses, etc.  
   See       optical flint       optical crown  
optical illusion  
      n  
1    an object causing a false visual impression  
2    an instance of deception by such an object  
optical isomerism  
      n   isomerism of chemical compounds in which the two isomers differ only in that their molecules are mirror images of each other  
   See also       dextrorotation       laevorotatory       racemize  
  optical isomer      n  
optical mark reading  
      n   the reading of marks by an optical device whereby the information can be stored in machine-readable form  
optical pyrometer  
      n      See       pyrometer  
optical rotation  
      n   the angle through which plane-polarized light is rotated in its passage through a substance exhibiting optical activity  
optical scanner  
      n   a computer peripheral device enabling printed material, including characters and diagrams, to be scanned and converted into a form that can be stored in a computer  
   See also       optical character reader  
optical sound  
      n   sound recorded in the form of a photographic image on cinematograph films  

Diccionario de inglés definición  

Diccionario colaborativo     Inglés Definiciones
v.
add new material to or regularly update a blog ; write about an activity, event, situation, topic, etc. in a blog
It's about a fortnight since I last blogged / Her world tour is a great adventure, and the best thing is that you can tag along with her because she is blogging her trip in near-live time
n.
a person who has a lack of experience, skill or knowledge in a particular sphere or activity, especially computing or the use of the Internet
[Slang];[Pej.] Also written "n00b" (with zeros). The word came from "newb" or "newbie" which refers to someone who is just starting out in the use of the Net.
n.
person skilled for an activity, especially for one involving motion (like sports; dance)
una canción de los 90
n.
the end of an user’s Internet activity after his or her physical death
[Tech.]
v.
declare that you're done with work or other activity, and that you want to go out or rest or go to bed
[Fig.];[Fam.]
n.
any food, beverage, drug or activity that helps people feel more comfortable in social occasions
Ex: Having an alcohol beverage might be seen as a kind of social lubrificant as so far as it helps some peole overcome their shyness
exp.
1. to stop using an addictive substance abruptly and completely. 2. to undergo sudden and complete withdrawal from a habitual activity or behavior pattern. 3. to begin or do something without planning, preparation, or practice.
n.
set of data relative to the online activity of one particular user
[Tech.]
n.
activity involving dumping a bucket of ice water on your head and challenge other three friends to do so in order to promote awareness of the disease amyotrophic lateral sclerosis (ALS) and encourage donations to research.
also called "ice water challenge", viral campaign on social media during July–August 2014
n.
the actions and activities assigned to or required or expected of a person or group
n.
Online journal where the writer presents a record of activities, thoughts, or beliefs
Ex: In 2004, blogs were becoming highly popular and began to influence mainstream media. Also: weblog. Ex: He sent her an e-mail after googling her name and finding her weblog.
n.
blend of "slacker" and "activism". Act of participating to pointless activities as a type of activism.
Signing on-line petitions or wearing bracelets against war are forms of slacktivism
n.
the application of scientifically proven methods to gather, process, interpret, and to use digital evidence to provide a conclusive description of cyber crime activities
[Tech.]
n.
Cyber-surveillance is an electronic system for the surveillance of online activities, objects or processes that are operated from and on the Internet.
[Tech.];[Leg.] Cyber-surveillance is an electronic system for the surveillance of online activities
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