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analog

[an-l-awg, -og] /ˈæn lˌɔg, -ˌɒg/
noun
1.
adjective
2.
of or relating to a mechanism that represents data by measurement of a continuous physical variable, as voltage or pressure.

analogue

or analog

[an-l-awg, -og] /ˈæn lˌɔg, -ˌɒg/
noun
1.
something having analogy to something else.
2.
Biology. an organ or part analogous to another.
3.
Chemistry. one of a group of chemical compounds similar in structure but different in respect to elemental composition.
4.
a food made from vegetable matter, especially soybeans, that has been processed to taste and look like another food, as meat or dairy, and is used as a substitute for it.
Origin of analogue
1820-1830
1820-30; < French < Greek análogon, neuter of análogos analogous; replacing earlier analogon < Greek
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for analog
Historical Examples
  • analog computers have been used experimentally for theoretical projections of results.

    Atoms, Nature, and Man Neal O. Hines
  • Today he still remains as the editor of that magazine's evolved and redesigned successor, analog.

    Islands of Space John W Campbell
British Dictionary definitions for analog

analog

/ˈænəˌlɒɡ/
noun
1.
a variant spelling of analogue
Usage note
The spelling analog is a US variant of analogue in all its senses, and is also the generally preferred spelling in the computer industry

analogue

/ˈænəˌlɒɡ/
noun
1.
  1. a physical object or quantity, such as a pointer on a dial or a voltage, used to measure or represent another quantity
  2. (as modifier): analogue watch, analogue recording
2.
something analogous to something else
3.
(biology) an analogous part or organ
4.
(chem)
  1. an organic chemical compound related to another by substitution of hydrogen atoms with alkyl groups: toluene is an analogue of benzene
  2. an organic compound that is similar in structure to another organic compound: thiols are sulphur analogues of alcohols
5.
(informal) a person who is afraid of using new technological devices Compare digital native, digital immigrant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for analog

chiefly U.S. spelling of analogue (q.v.).

analogue

n.

1826, "an analogous thing," from French analogue, from Greek analogon (itself used in English from c.1810), from ana "up to" (see ana-) + logos "account, ratio" (see lecture (n.)). Computing sense is recorded from 1946.

Online Etymology Dictionary, © 2010 Douglas Harper
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analog in Medicine

analogue an·a·logue or an·a·log (ān'ə-lôg')
n.

  1. An organ or structure similar in function to one in another species but of dissimilar evolutionary origin.

  2. A structural derivative of a parent chemical compound that often differs from it by a single element.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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analog in Science
analog or analogue
  (ān'ə-lôg')   
Adjective  Measuring or representing data by means of one or more physical properties that can express any value along a continuous scale. For example, the position of the hands of a clock is an analog representation of time. Compare digital.

Noun  
  1. An organ or structure that is similar in function to one in another kind of organism but is of dissimilar evolutionary origin. The wings of birds and the wings of insects are analogs.

  2. A chemical compound that has a similar structure and similar chemical properties to those of another compound, but differs from it by a single element or group. The antibiotic amoxicillin, for example, is an analog of penicillin, differing from the latter by the addition of an amino group. Compare homologue.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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analog in Technology

spelling
American spelling of analogue.
(1995-11-14)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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