Compounds of 原

• 原子番号
  (n) atomic number
• 原子兵器
  (n) atomic weapons
• 原子力学
  (n) atomic mechanics
• 原子力船
  (n) nuclear(-powered) ship (vessel)
• 原成岩石
  (n) primary rocks
• 原生生物
  (n) protist
  protistan
  protoctist
• 原生動物
  (n,adj-no) protozoan
• 原生保護
  (n) wilderness preservation
• 原発銀座
  (n) area where a string of nuclear power plants are located
• 原付一種
  (n) motorcycle, less than or equal to 50cc
• 原付二種
  (n) motorcycle, less than or equal to 125cc
• 原野商法
  (n) the selling of waste land (worthless property) by unscrupulous real-estate developers
• 原油価格
  (n) crude oil price
• 原油供給
  (n) oil supply
• 原油生産
  (n) oil production
• 原油流出
  (n) (crude) oil spill
• 原理主義
  (n) fundamentalism
• 原料粉末
  (n) base powder
  bulk powder
• 行動原理
  (n) behavioral principle
  principle (value) governing one's conduct
• 根本原理
  (n) fundamental (basic) principles
  fundamentals
  ground rules
• 山原水鶏
  (n) (uk) Okinawa rail (bird) (Gallirallus okinawae)
• 始原細胞
  (n) initial cell
• 市場原理
  (n) market principle
• 指導原理
  (n) guiding principle
• 事故原因
  (n) source, cause of an accident
• 種の起原
  (n) Origin of Species
• 小笠原流
  (n) (1) (col) Ogasawara-ryu (school of etiquette)
  (2) punctilious etiquette
  (3) Ogasawara-ryu (school of archery, inc. horseback archery)
  (4) Ogasawara-ryu (school of military strategy)
• 焼け野原
  (n) burnt field
  burnt area
• 浄御原令
  (n) (abbr) Asuka Kiyomihara Code (689 CE)
• 精原細胞
  (n) spermatogonium