You searched for: “chiasmometers”
chiasmometer, chiastometer (s) (noun); chiasmometers, chiastometers (pl)
1. A device to measure the distance between the centers of rotation of the two eyes.
2. Etymology: the crossing of two lines as in chi (X), twenty-second letter of the Greek alphabet.
This entry is located in the following unit: chiasto-, chiasm- + (page 1)