stadia 1
/stay"dee euh/ , n.
1. a method of surveying in which distances are read by noting the interval on a graduated rod intercepted by two parallel cross hairs (stadia hairs or stadia wires) mounted in the telescope of a surveying instrument, the rod being placed at one end of the distance to be measured and the surveying instrument at the other.
adj.
2. pertaining to such a method of surveying.
[ 1860-65; prob. special use of STADIA 2 ]
stadia 2
/stay"dee euh/ , n.
a pl. of stadium .