from the GNU version of the Collaborative International Dictionary of English
- adj. that point in a planet's orbit where it intersects the ecliptic in passing southward.
- n. the node at which the body is moving southwardly, marked thus ☋, called Dragon's tail.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the point at which an orbit crosses the ecliptic plane going south
Sorry, no etymologies found.