| PRIM | first in rank or degree |
|---|---|
| PRIM | used of the first or originating agent |
| PRIM | at the best stage |
| PRIM | of superior grade |
| PRIM | (math) of or relating to or being an integer that cannot be factored into other integers |
| PRIM | the prime factors of a quantity are all of the prime quantities that will exactly divide the given quantity |
| PRIM | the interest rate on short-term loans that banks charge their commercial customers with high credit ratings |
| PRIM | meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich (England) longitude) |
| PRIM | the position of the cabinet minister who is in charge of government affairs |
| PRIM | the person who holds the position of head of state in England |
| PRIM | the person who is head of state (in several countries) |
| PRIM | a self-caused agent that is the cause of all things |