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 "perimeter" is from the Greek words peri(around) and métron (measure).
περίμετρος (perimetros). Perimeter περι-around(a specific area) -μετρο -meter, a measure of distance
Rf is nothing but retardation factor in paper chromatography.Rf= distance spot traveled/distance solvent traveled
speed
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'
velocity means the distance traveled in certain time and in a certain direction. Therefore: velocity is the result of dividing the traveled distance by time taken, and adding a direction to it.
In Greek, parameter means the following: Para means beside and meter means measure. Thus, meaning beside measure in Greek. Parameter is used in a variety of subjects such as linguistics, mathematics, etc.