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[dih-doos, -dyoos] /dɪˈdus, -ˈdyus/
verb (used with object), deduced, deducing.
to derive as a conclusion from something known or assumed; infer:
From the evidence the detective deduced that the gardener had done it.
to trace the derivation of; trace the course of:
to deduce one's lineage.
1520-30; < Latin dēdūcere to lead down, derive, equivalent to dē- de- + dūcere to lead, bring
Related forms
deducible, adjective
deducibility, deducibleness, noun
deducibly, adverb
nondeducible, adjective
subdeducible, adjective
undeduced, adjective
undeducible, adjective
Can be confused
adduce, deduce, induce.
deduce, deduct.
deducible, deductible.
1. conclude, reason, gather, determine. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for deduced
  • From these main premises he deduced a system that is altogether remarkable for its thorough-going simplicity.
  • Noting this, the experimenters deduced that ammonia was the airborne molecule to which the bacteria were responding.
  • One clear reason for this can be fairly easily deduced.
  • Once the design principle on one level is conquered, the principle on the other levels even on the whole system may be deduced.
  • And before that, actually, it was deduced by the absence of breathing.
  • The crucial question is to test the hypothesis whether influence can be deduced from a social network at all to begin with.
  • Also it is a well known fact that once a theorem is deduced, there is no way for the theory to retract it.
  • As deduced from the testimony of these witnesses, the other world comes into clear focus.
  • How people act and how they are influenced should be deduced from observation of their behavior and not by the use of a syllogism.
  • The orbit of this large body can be deduced by various means.
British Dictionary definitions for deduced


verb (transitive)
(may take a clause as object) to reach (a conclusion about something) by reasoning; conclude (that); infer
(archaic) to trace the origin, course, or derivation of
Derived Forms
deducible, adjective
deducibility, deducibleness, noun
Word Origin
C15: from Latin dēdūcere to lead away, derive, from de- + dūcere to lead
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 deduced



early 15c., from Latin deducere "lead down, derive" (in Medieval Latin, "infer logically"), from de- "down" (see de-) + ducere "to lead" (see duke (n.)). Originally literal; sense of "draw a conclusion from something already known" is first recorded 1520s, from Medieval Latin. Related: Deduced; deducing.

Online Etymology Dictionary, © 2010 Douglas Harper
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