prim·er /ˈprɪmɚ/
  入門書,初級讀本,雷管,導火線,底漆
  prim·er /ˈpraɪmɚ/ 名詞
  引發劑
  Prim·er n. One who, or that which, primes; specifically, an instrument or device for priming; esp., a cap, tube, or water containing percussion powder or other compound for igniting a charge of gunpowder.
  Prim·er, a.  First; original; primary. [Obs.] “The primer English kings.”
  Primer fine O. Eng. Law, a fine due to the king on the writ or commencement of a suit by fine. --Blackstone.
  Primer seizin Feudal Law, the right of the king, when a tenant in capite died seized of a knight's fee, to receive of the heir, if of full age, one year's profits of the land if in possession, and half a year's profits if the land was in reversion expectant on an estate for life; -- now abolished.
  Prim·er n.
  1. Originally, a small prayer book for church service, containing the little office of the Virgin Mary; also, a work of elementary religious instruction.
     The primer, or office of the Blessed Virgin.   --Bp. Stillingfleet.
  2. A small elementary book for teaching children to read; a reading or spelling book for a beginner.
     As he sat in the school at his prymer.   --Chaucer.
  3. Print. A kind of type, of which there are two species; one, called long primer, intermediate in size between bourgeois and small pica [see Long primer]; the other, called great primer, larger than pica.
  Note: 
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  primer
       n 1: an introductory textbook
       2: any igniter that is used to initiate the burning of a
          propellant [syn: fuse, fuze, fusee, fuzee, priming]
       3: the first or preliminary coat of paint or size applied to a
          surface [syn: flat coat, ground, priming, primer
          coat, priming coat, undercoat]