specialist
Americannoun
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a person who is devoted to one subject or to one particular branch of a subject or pursuit.
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a medical practitioner who devotes attention to a particular class of diseases, patients, etc.
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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.
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Stock Exchange. a member of an exchange who buys and sells a single stock or a particular group of stocks in their own name or for other stockbrokers and thus helps maintain the market in those securities on that exchange.
noun
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a person who specializes in or devotes himself to a particular area of activity, field of research, etc
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( as modifier )
specialist knowledge
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an enlisted rank in the US Army denoting technical qualifications that entitle the holder to a noncommissioned officer's pay
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ecology an organism that has special nutritional requirements and lives in a restricted habitat that provides these Compare generalist
Other Word Forms
Etymology
Origin of specialist
Explanation
A specialist has an area of expertise in a profession or branch of learning. Call an ear, nose, and throat specialist if you can’t shake a stuffy nose, but go to a Shakespeare specialist to learn about King Lear. Specialist started off as a word used just for doctors who focused particular diseases or parts of the body, but now a specialist can be someone with a narrow focus in any field. A specialist is any professional with a specialty — lawyers are specialists because each lawyer deals with a specific kind of legal work. To be a specialist you have to study or get experience in a specific field for a long time.
Vocabulary lists containing specialist
The Perks of Being a Wallflower
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National Nurses Week: Hospital People and Places
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Things Not Seen
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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.
"These are specialist species which really need reed beds, long grassy habitats and areas like peat bog and marsh," he added.
From BBC • May 19, 2026
French advertising company Publicis reached a deal to acquire the data specialist for a total enterprise value of $2.2 billion.
From Barron's • May 18, 2026
"These three companies are kind of unique," said Jay Ritter, a specialist in IPOs at the University of Florida.
From Barron's • May 17, 2026
In travel news this week, 18 American passengers from the expedition cruise ship struck by a rare hantavirus outbreak were transported to a specialist quarantine center after one tested positive and another showed symptoms.
From The Wall Street Journal • May 15, 2026
A few years back, Farmer had talked him into training as an infectious disease specialist.
From "Mountains Beyond Mountains" by Tracy Kidder and Michael French
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
