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  1. acting as part of a servomechanism: servo amplifier.
  2. pertaining to or having to do with servomechanisms: servo engineer.
  3. noting the action of certain mechanisms, as brakes, that are set in operation by other mechanisms but which themselves augment the force of that action by the way in which they operate.
noun, plural ser·vos.
  1. Informal. servomechanism.
verb (used with object), ser·voed, ser·vo·ing.
  1. to connect (a mechanism) to another as a servomechanism.

Origin of servo

1945–50; independent use of servo-, taken as an adj., or shortening of words formed with it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for servoed


  1. (prenominal) of, relating to, forming part of, or activated by a servomechanismservo brakes
noun plural -vos
  1. informal short for servomechanism

Word Origin

see servomotor


noun plural -vos
  1. Australian informal a service station
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 servoed


1910, from servo-motor (1889), from French servo-moteur (1873), ultimately from Latin servus "slave" (see serve (v.)) + motor "mover" (see motor (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper