frontier

英 ['fr?nt??; fr?n't??] 美[fr?n't?r]
  • n. 前沿；邊界；國(guó)境
  • adj. 邊界的；開拓的
  • n. (Frontier)人名；(法)弗龍捷

英英釋意

1. a wilderness at the edge of a settled area of a country;
"the individualism of the frontier in Andrew Jackson's day"
2. an international boundary or the area (often fortified) immediately inside the boundary
3. an undeveloped field of study; a topic inviting research and development;
"he worked at the frontier of brain science"