rachiometer
A device for measuring spinal curvature.
rare
Biomechanical instruments, such as the rachiometer and posturometer, have been developed to record spinal curvatures and relate these to radiological findings.
Where it comes from
From Ancient Greek ῥάχις (rhákhis, “spine, ridge”) + -o- + -meter.
Adapted from the Wiktionary entry rachiometer (CC BY-SA 4.0).