Pronunciation: (south'south"ēst'; Naut.sou'sou"ēst'), [key] Navig., Survey.
the point on the compass midway between south and southeast.
1. coming from this point: a south-southeast wind.
2. directed toward this point: a south-southeast course.
toward this point: sailing south-southeast. Abbr.: SSE
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.