Definition of primer
(Entry 1 of 2)
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
noun (2)Definition of primer (Entry 2 of 2)
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)
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Merriam-Webster unabridged
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Time Traveler for primer
The first known use of primer was in the 14th century
See more words from the same century