闭域

閉域
bìyù
  1. closed domain
  2. algebraically closed field (math.), e.g. complex number field 复数域 fùshùyù

CEDICT

math

Entry Composition

1 闭 bì
  1. to close
  2. to stop up
  3. to shut
  4. to obstruct
2 域 yù
  1. field
  2. region
  3. area
  4. domain (taxonomy)