/'praɪmə(r); `prɪmɚ/
n (dated 旧) textbook for people just starting to study a subject 初级读本; 入门书
*a Latin primer 拉丁文入门.

/'praɪmə(r); `praɪmɚ/
n
1 [U, C] substance usedto prime3(2) a surface for painting （上油漆用的）底层涂料, 底漆.
2 [C] amount of explosive in a smallcontainer used to explode the main charge of gunpowderin a cartridge, bomb, etc 底火; 火帽; 点火药.

n
[U and C]
paint that you put on the surface of wood, metal etc before you put on the main layer of paint
[C]
a tube that contains explosive and is used to fire a gun or explode a bomb
[C]AmE
a book that contains basic information about something
primer on/of
　a primer on Italian wines
　a primer of good management techniques
[C]old-fashioned a school book that contains very basic facts about a subject