(initialism) .  (space science) third Lagrange point, located 180-degrees behind or ahead on the orbit of the smaller object in orbit around a larger one, diametrically opposed to the smaller object.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.