/west"sowth'west"/ ; Naut. /west"sow'west"/ , Navig., Survey.
n.
1. a point on the compass midway between west and southwest.
adj.
2. coming from this point: a west-southwest wind.
3. directed toward this point: a west-southwest course.
adv.
4. toward this point: sailing west-southwest. Abbr.: WSW
[ 1350-1400; ME ]