p-d

英['piːd'iː] 美['piːd'iː]
  • abbr.=prismdiopter
  • alkaloid n.生物碱;植物碱基adj.生物碱的;似碱的
  • pyridine n.吡啶;氮苯
名词 pd:
  1. a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry