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specialist

[spesh-uh-list] /ˈspɛʃ ə lɪst/
noun
1.
a person who devotes himself or herself to one subject or to one particular branch of a subject or pursuit.
2.
a medical practitioner who devotes attention to a particular class of diseases, patients, etc.
3.
U.S. Army. an enlisted person of one of four grades having technical or administrative duties, the grades corresponding to those of corporal through sergeant first class but not requiring the exercise of command.
4.
Stock Exchange. a member of an exchange who executes orders in his or her name or for other stockbrokers in a single stock or a particular group of stocks and thus helps maintain the market in those securities on that exchange.
Origin
1855-1860
1855-60; special + -ist
Related forms
nonspecialist, noun, adjective
prespecialist, noun
subspecialist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for subspecialist

specialist

/ˈspɛʃəlɪst/
noun
1.
  1. a person who specializes in or devotes himself to a particular area of activity, field of research, etc
  2. (as modifier): specialist knowledge
2.
an enlisted rank in the US Army denoting technical qualifications that entitle the holder to a noncommissioned officer's pay
3.
(ecology) an organism that has special nutritional requirements and lives in a restricted habitat that provides these Compare generalist
Derived Forms
specialistic, adjective
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 subspecialist

specialist

n.

1856 (originally in the medical sense); see special + -ist.

Online Etymology Dictionary, © 2010 Douglas Harper
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subspecialist in Medicine

specialist spe·cial·ist (spěsh'ə-lĭst)
n.
A physician whose practice is limited to a particular branch of medicine or surgery, especially one who is certified by a board of physicians.

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