diagnostician

American

[dahy-uhg-no-stish-uhn] / ˌdaɪ əg nɒˈstɪʃ ən /

noun

an expert in making diagnoses, especially a medical doctor.

diagnostician British

/ ˌdaɪəɡnɒsˈtɪʃən /

noun

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

Etymology

Origin of diagnostician

First recorded in 1865–70; diagnostic + -ian

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The 20th century’s most piercing diagnostician of societies—as V.S.

From The Wall Street Journal • Nov. 20, 2025

And she’ll learn that her son is dead, a trauma that turned her cold and made her unpopular at work and with patients, though no less super powerful a diagnostician — which she remains.

From Los Angeles Times • Jan. 9, 2025

Take a look and see how you can become your own best technical diagnostician.

From The Verge • Jun. 28, 2022

Scott's ability, his skills as a diagnostician, his ability to articulate a note is better than anyone I've ever worked with.

From Salon • May 23, 2019

She went through evaluations with both a psychologist and an educational diagnostician.

From "The Book of Unknown Americans" by Cristina Henríquez

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023