or Brit  ex*ter*nal*ise  vt, -ized  or Brit  -ised  -iz*ing  or Brit  -is*ing  1 a  :  to transform from a mental image into an apparently real object (as in hallucinations)  :  attribute (a mental image) to external causation <externalizing an obsession>   b  :  to invent an explanation for (an inner problem whose actual basis is known only subconsciously) by attributing to causes outside the self  :  RATIONALIZE, PROJECT <externalized his inability to succeed>   2  :  to direct outward socially <externalized her anger>  ex*ter*nal*iza*tion or Brit  ex*ter*nal*isa*tion  n 
 
 
 
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