radius vector

1. 1.

   a line connecting a satellite to the center of the body around which it is rotating

   Broadervector
2. 2.

   a line connecting a point in space to the origin of a polar coordinate system

   Broadervector

Questions about radius vector

What does radius vector mean?

radius vector means "a line connecting a satellite to the center of the body around which it is rotating". That is the primary sense; the word has 2 in total, listed in full on this page.

Is radius vector a common word?

radius vector is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.