"Distance measurements" refers to the process of determining the length or extent between two points or objects. It involves quantifying the space or gap that exists between them. Full definition
The GPS on - board lets you map your runs for accurate distance measurements, and the heart rate monitor can also measure your beats per minute whenever you ask it. (digitaltrends.com)
When the primary straight lines and curves have been made, points are measured along them using pace counting for distance measurement. (treehugger.com)
Using a variety of data from different telescopes and armed with the new distance measurement, they determined that the neutron star is between 16 and 25 miles in diameter. (public.nrao.edu)