primer meaning and definition

PRIMER noun

Definition of primer (noun)

1. an introductory textbook
2. any igniter that is used to initiate the burning of a propellant
   • synonyms: fuse, fusee, fuze, fuzee, priming
3. the first or preliminary coat of paint or size applied to a surface
   • synonyms: flat coat, ground, primer coat, priming, priming coat, undercoat