[an-l-awg, -og]



of or relating to a mechanism that represents data by measurement of a continuous physical variable, as voltage or pressure.


or an·a·log

[an-l-awg, -og]


something having analogy to something else.
Biology. an organ or part analogous to another.
Chemistry. one of a group of chemical compounds similar in structure but different in respect to elemental composition.
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

1820–30; < French < Greek análogon, neuter of análogos analogous; replacing earlier analogon < Greek Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for analog

Historical Examples of analog

  • Today he still remains as the editor of that magazine's evolved and redesigned successor, Analog.

    Islands of Space

    John W Campbell

  • Analog computers have been used experimentally for theoretical projections of results.

British Dictionary definitions for analog



a variant spelling of analogue


The spelling analog is a US variant of analogue in all its senses, and is also the generally preferred spelling in the computer industry


sometimes US analog


  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
something analogous to something else
biology an analogous part or organ
  1. an organic chemical compound related to another by substitution of hydrogen atoms with alkyl groupstoluene is an analogue of benzene
  2. an organic compound that is similar in structure to another organic compoundthiols are sulphur analogues of alcohols
informal a person who is afraid of using new technological devicesCompare digital native, digital immigrant


See analog
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

Word Origin and History for analog

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



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

analog in Science


analogue (ănə-lôg′)


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.


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.
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.