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
Derived Forms
Inflected Forms
Nouns
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.
One of the hardest parts of losing a child “is that you’re not just grieving the person, you’re grieving the future you imagined with them,” said Los Angeles-based grief specialist Carla Harvey.
From Los Angeles Times • Jul. 9, 2026
But the specialist publication Research Professional News reports that there will still be significant cutbacks in research, because of the greater cost increases of undertaking particle physics and astronomy research.
From BBC • Jul. 9, 2026
Lasser was born in New York City on April 11, 1939, to parents Sol Jay Lasser, a tax specialist, and Paula Lasser, a designer.
From Los Angeles Times • Jul. 8, 2026
"We are likely to see marine heatwave conditions becoming average towards the middle-to-end of the century," warned Dr Ségolène Berthou, air-sea interaction specialist at the UK Met Office.
From BBC • Jul. 7, 2026
By the time 1955 rolled around, Dr. Scott told us that we needed to see a specialist surgeon.
From "Reaching for the Moon" by Katherine Johnson
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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.