'Triweekly' definitions:

Definition of 'Triweekly'

From: GCIDE
  • Triweekly \Tri"week`ly\, a. [Pref. tri- + weekly.] Occurring or appearing three times a week; thriceweekly; as, a triweekly newspaper. -- adv. Three times a week. -- n. A triweekly publication. [1913 Webster]
  • Note: This is a convenient word, but is not legitimately formed. It should mean occurring once in three weeks, as triennial means once in three years. Cf. Biweekly. [1913 Webster]