Descending node Meaning, Definition & Usage

  1. noun the point at which an orbit crosses the ecliptic plane going south

WordNet


Definitions
  1. (Astron.), that point in a planet's orbit where it intersects the ecliptic in passing southward.
Definitions
  1. the node at which the body is moving southwardly, marked thus &astdescending;, called Dragon's tail.

Webster 1913