• (n. pl.) The inhabitants of the tropic, whose shadows in one part of the year are cast to the north, and in the other to the south, according as the sun is south or north of their zenith. Found on http://thinkexist.com/dictionary/meaning/amphiscians/
1) Inhabitants of the tropics 
• (n. pl.) The inhabitants of the tropic, whose shadows in one part of the year are cast to the north, and in the other to the south, according as the sun is south or north of their zenith.