primer

1 of 2

noun (1)

prim·​er ˈpri-mər How to pronounce primer (audio)
 chiefly British  ˈprī-mə
1
: a small book for teaching children to read
2
: a small introductory book on a subject
3
: a short informative piece of writing

primer

2 of 2

noun (2)

prim·​er ˈprī-mər How to pronounce primer (audio)
1
: a device for priming
especially : a cap, tube, or wafer containing percussion powder or compound used to ignite an explosive charge
2
: material used in priming a surface

called also prime coat

3
: a molecule (such as a short strand of RNA or DNA) whose presence is required for formation of another molecule (such as a longer chain of DNA)

Did you know?

Primers were once a standard part of every child's education. The first primer printed in North America, The New England Primer (ca. 1690), was typical; it contained many quotations from the Bible and many moral lessons, and the text was accompanied by numerous woodcut illustrations. We no longer use the word in early education, but it's widely used in everyday speech. Notice how primer is pronounced; don't mix it up with the kind of paint that's pronounced with a long *i *sound.

Examples of primer in a Sentence

Noun (1) a primer of human anatomy
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
This set includes a makeup primer, lightweight foundation and setting powder to create a flawless complexion. Ivy Manners, New York Times, 5 Apr. 2025 In our primer from Monday, Jesse and I wrote about cautious optimism in the books-to-screen market, with one agent positing that in times of economic volatility big IP wins out. Max Goldbart, Deadline, 14 Mar. 2025 The Hard Candy x Girl Scouts collection, now available at Walmart and walmart.com, also includes body scent oils, a primer, a makeup brush set, beauty headbands and a makeup bag. Renan Botelho, WWD, 13 Mar. 2025 The University of Minnesota Extension has a Lawn and Garden primer, which includes a guide for selecting and caring for trees. Mike Snider, USA TODAY, 11 Mar. 2025 See All Example Sentences for primer

Word History

Etymology

Noun (1)

Middle English, "layperson's prayer book," borrowed from Anglo-French, borrowed from Medieval Latin prīmārius, prīmārium, noun derivatives from masculine and neuter of prīmārius "lying at the beginning, primary entry 1"

Noun (2)

prime entry 3 + -er entry 2

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1

Noun (2)

1650, in the meaning defined at sense 2

Time Traveler
The first known use of primer was in the 14th century

Browse Nearby Words

Cite this Entry

“Primer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/primer. Accessed 28 Apr. 2025.

Kids Definition

primer

1 of 2 noun
prim·​er ˈprim-ər How to pronounce primer (audio)
 especially British  ˈprī-mər
1
: a small book for teaching children to read
2
: a book that introduces a subject
a primer of chemistry
3
: a short informative piece of writing
a primer on healthy eating

primer

2 of 2 noun
prim·​er ˈprī-mər How to pronounce primer (audio)
1
: a device (as a cap or tube) containing a small explosive charge that is used for setting off a larger explosive charge (as in a cartridge)
2
: material used in priming a surface

Medical Definition

primer

noun
prim·​er ˈprī-mər How to pronounce primer (audio)
: a molecule (as a short strand of RNA or DNA) whose presence is required for formation of another molecule (as a longer chain of DNA)

More from Merriam-Webster on primer

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