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[kaw-zuh l] /ˈkɔ zəl/
of, constituting, or implying a cause.
Grammar. expressing a cause, as the conjunctions because and since.
Origin of causal
1520-30; < Latin causālis, equivalent to caus(a) cause + -ālis -al1
Related forms
causally, adverb
noncausal, adjective
noncausally, adverb
supercausal, adjective
uncausal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for causal
Contemporary Examples
Historical Examples
  • The causal retribution is in the thing and is seen by the soul.

    Essays, First Series Ralph Waldo Emerson
  • He is a beholder of ideas and an utterer of the necessary and causal.

    Essays, Second Series Ralph Waldo Emerson
  • Seen from a causal point of view, however, there is no miracle in it at all.

    Psychotherapy Hugo Mnsterberg
  • causal effects are sought in a sphere which belongs to purposive values.

    Psychotherapy Hugo Mnsterberg
  • He works with moral means; the physician, with causal means.

    Psychotherapy Hugo Mnsterberg
British Dictionary definitions for causal


acting as or being a cause
stating, involving, or implying a cause: the causal part of the argument
(philosophy) (of a theory) explaining a phenomenon or analysing a concept in terms of some causal relation
Derived Forms
causally, adverb
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 causal

1530s, from Latin causalis "relating to a cause," from causa (see cause (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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