/sem'ee week"lee, sem'uy-/ , adj., n., pl. semiweeklies , adv.
adj.
1. occurring, done, appearing, or published twice a week: semiweekly visits.
n.
2. a semiweekly publication.
adv.
3. twice a week: He traveled semiweekly to Detroit.
[ 1785-95, Amer.; SEMI- + WEEKLY ]
Usage . See bi- 1 .