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[dahy-uh g-no-stish-uh n] /ˌdaɪ əg nɒˈstɪʃ ən/
an expert in making diagnoses, especially a medical doctor.
Origin of diagnostician
1865-70; diagnostic + -ian Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for diagnostician
  • Ironically, he's a genius diagnostician, a brilliant solver of medical mysteries.
  • He walks with difficulty, and has to use a cane-the result of an unbrilliant diagnostician's mistake earlier in his life.
  • He's a great diagnostician, and he's got a great bedside manner.
  • He is an expert diagnostician, a quality he shares with his author.
  • The diagnostician's licensure number and expiration is required for all requests.
  • The teacher's role changes from a presenter of content to a diagnostician of learning experiences in individualized instruction.
  • The treatment plan is approved by a qualified diagnostician.
  • Their job descriptions emphasize three major roles: diagnostician, consultant, and case manager.
British Dictionary definitions for diagnostician


a specialist or expert in making diagnoses
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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diagnostician in Medicine

diagnostician di·ag·nos·ti·cian (dī'əg-nŏ-stĭsh'ən)
A person who diagnoses, especially a physician specializing in medical diagnostics.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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