WordReference Random House Unabridged Dictionary of American English © 2026
as•tro•gate
(as′trə gāt′),USA pronunciation v.i., v.t., -gat•ed, -gat•ing.
as′tro•ga′tion, n.
as′tro•ga′tor, n.
- Aerospaceto navigate in outer space.
- astro- + (navi)gate
as′tro•ga′tor, n.