primer

1 primer /ˈprɪmɚ/ Brit /ˈpraɪmə/ noun
plural primers
1 primer
/ˈprɪmɚ/ Brit /ˈpraɪmə/
noun
plural primers
Britannica Dictionary definition of PRIMER
[count]
1 
chiefly US : something (such as a book) that provides basic information on a particular subject
2 
: a small book that helps teach children how to read
2 primer /ˈpraɪmɚ/ noun
plural primers
2 primer
/ˈpraɪmɚ/
noun
plural primers
Britannica Dictionary definition of PRIMER
[count, noncount]
: a kind of paint that is used to prepare a surface for a final layer of a different paint