| PRI | insert a primer into (a gun, mine, charge, etc.) preparatory to detonation or firing |
|---|---|
| PRI | fill with priming liquid |
| PRI | cover with a primer |
| PRI | first in rank or degree |
| PRI | used of the first or originating agent |
| PRI | at the best stage |
| PRI | of superior grade |
| PRI | (math) of or relating to or being an integer that cannot be factored into other integers |
| PRI | the prime factors of a quantity are all of the prime quantities that will exactly divide the given quantity |
| PRI | the interest rate on short-term loans that banks charge their commercial customers with high credit ratings |
| PRI | meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich (England) longitude) |
| PRI | the position of the cabinet minister who is in charge of government affairs |