radius vector

radius vector


Definition of RADIUS VECTOR

a :  the line segment or its length from a fixed point to a variable point
b :  the linear polar coordinate of a variable point
:  a straight line joining the center of an attracting body (as the sun) with that of a body (as a planet) in orbit around it

First Known Use of RADIUS VECTOR

circa 1753


Next Word in the Dictionary: radix
Previous Word in the Dictionary: radius rod
All Words Near: radius vector

Seen & Heard

What made you want to look up radius vector? Please tell us where you read or heard it (including the quote, if possible).