略語大辞典 [C] 18 NPN N(negative)-P(positive)-N(negative) semiconductor junction npn接合型トランジスタ. バイポーラ トランジスタ.N(negative)-P(positive)-N(negative) semiconductor junction; a junction transistor; ref. PNP (transistor); [C:E]. 丸善「略語大辞典」JLogosID : 11863191