noun
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a shop selling medicines, cosmetics, etc
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a qualified dispenser of prescribed medicines
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a person studying, trained in, or engaged in chemistry
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an obsolete word for alchemist
Other Word Forms
Derived Forms
Etymology
Origin of chemist
First recorded in 1555–65; from Greek chēm(ía) (also chēmeía, chymeía ) “art of alloying metals; alchemy” + -ist; replacing chymist, from Medieval Latin alchimista; see alchemist ( def. )
Explanation
A scientist who studies the elements that make up all matter is a chemist. If you enjoy doing experiments that involve mixing substances in test tubes, you'd probably love being a chemist. Chemists practice the science of chemistry, which examines the properties that make up everything in the universe. These working scientists examine the tiniest particles of substances, the atoms and molecules that form the earth, the oceans, and even you, yourself. Chemists also study how elements interact with each other and form new substances; we have chemists to thank for inventing penicillin, plastic, and artificial sweeteners, among many other things.
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.
That results in a small cooling effect for the planet, said Eloise Marais, an atmospheric chemist at University College London and one of the paper’s authors.
From The Wall Street Journal • Jun. 11, 2026
"Basically, it needs to be safe forever," noted Lauri Parviainen, a Posiva chemist who showed reporters around the facilities.
From Barron's • Jun. 1, 2026
With only one roll of film in his camera, he borrowed more from the chemist and began taking photos almost immediately.
From BBC • May 10, 2026
In November 2019, soil engineer Tim Neiligan, a former FBI chemist, began researching how bodies decompose in soil.
From Los Angeles Times • May 9, 2026
The Neylan board’s first case involved a former Los Alamos chemist named Robert Hurley, who had fallen under suspicion because his Latvian-born wife purportedly had leftist sympathies.
From "Big Science" by Michael Hiltzik
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.
