"primer" in the noun sense
1. primer
an introductory textbook
2. fuse, fuze, fusee, fuzee, primer, priming
any igniter that is used to initiate the burning of a propellant
3. flat coat, ground, primer, priming, primer coat, priming coat, undercoat
the first or preliminary coat of paint or size applied to a surface
Source: WordNet® (An amazing lexical database of English)
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