This is a simple tri-tip rub recipe straight from a barbeque in Santa Maria..
-ation. suffix forming nouns. 1. indicating an action, process, state, condition, or result Compare-ion, -tion: arbitration; cogitation; hibernation; moderation. [from Latin -ÄtiÅn-, suffix of abstract nouns, from -Ätus-ate 1 + -iÅn-ion].
Terminology [edit]. Per os (/ËpÉrËoÊs/ ; P.O.) is an adverbial phrase meaning literally from Latin by opening or by way of the opening.. The expression is used in medicine to describe a treatment that is taken orally. The abbreviated P.O. is often used on medical prescriptions.