Compounds of 系

• 制御系
  (n) (comp) control system
• 生態系
  (n) ecosystem
  (P)
• 生物系
  (n,n-suf) biological (system)
  bio-
• 側系統
  (n,adj-no) paraphyletic
• 多系統
  (n,adj-no) (1) multisystem
  (2) polyphyletic
• 多産系
  (n) variety which bears many young
• 太陽系
  (n) solar system
  (P)
• 体系化
  (n,vs) organization
  organisation
  systematization
  systematisation
• 体系学
  (n) systematics
• 体系的
  (adj-na) systematic
• 代数系
  (n) (math) algebraic system
• 単系統
  (n,adj-no) monophyletic
• 点火系
  (n) ignition system
• 同系色
  (n) similar color
  similar colour
• 日系人
  (n) non-Japanese of Japanese descent
  nikkeijin
• 配給系
  (n) chain of distribution
• 微系数
  (n) differential coefficient
• 表色系
  (n) (comp) color system
• 父系制
  (n) patrilineal system
  patriliny
• 文科系
  (n) literary group
• 保守系
  (n) conservative
• 保存系
  (n) conservative system (physics)
• 母系制
  (n) matriarchy
• 免疫系
  (n) immune system
• 癒し系
  (n,adj-no) therapy
  healing
  rejuvenating
  refreshing
  soothing
• 理工系
  (n) science and technology
• おにい系
  (n) men's fashion style characterized by brown hair and deep-tanned skin, expensive brand-name clothes and accessories
• アキバ系
  (n,adj-no) (sl) Akihabara style
  nerdy
• アジア系
  (n) Asian
  (person) of Asian descent
• オニイ系
  (n) men's fashion style characterized by brown hair and deep-tanned skin, expensive brand-name clothes and accessories