Frontier
[n] an undeveloped field of study; a topic inviting research and development; "he worked at the frontier of brain science"
[n] an international boundary or the area (often fortified) immediately inside the boundary
[n] a wilderness at the edge of a settled area of a country; "the individualism of the frontier in Andrew Jackson's day"
Related Information
Related Terms
anteriority, antipodes, back country, backcountry, backwash, backwater, backwoods, bamboo curtain, Berlin wall, bold front, boondock, boondocks, border, border ground, border line, bordering, borderland, borderline, bound, boundary, boundary condition, bo