Hodos ("path") and metron ("measure") are Greek roots that form the word odometer, which means "a measure of distance traveled."
Displacement means a measure of distance traveled.
The word that most likely means "a measure of distance around a specific area" based on Greek roots is "perimeter." The term is derived from the Greek words "peri" meaning "around" and "metron" meaning "measure."
The word for this device is an "odometer" from the Greek roots hodos (path) and métron (measure).
Odometer
The word that means distance traveled per unit time is "speed." Speed is a measure of how quickly an object moves from one place to another, expressed as the distance traveled per unit of time.
περίμετρος (perimetros). Perimeter περι-around(a specific area) -μετρο -meter, a measure of distance
The word "perimeter" is from the Greek words peri(around) and métron (measure).
Rf is nothing but retardation factor in paper chromatography.Rf= distance spot traveled/distance solvent traveled
The Greek root "meter" means measure or measurement. It is commonly used in words related to measuring or counting, such as thermometer (device to measure temperature) or diameter (distance across a circle through its center).
tele - from the greek means 'at or over a distance' phone - from the greek means 'sound'
S=d/t It's an Equation to show how to calculate the speed which would be the distance the object has traveled divided by the time is traveled for. Here's an Example: My Car traveled 10 miles in 10 hours so my speed would be 1mph as Distance: 10 miles divided by Time: 10 hours gives me 1mph.
tele means distance