tri-annual التعريفات والمعاني == English == === Etymology === From tri- + annual. === Adjective === tri-annual (not comparable) Alternative form of triannual. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة triannual triannually trisannuellement triangulation triannulate triangular trisannuel trianual trianualmente