| SEM | a pistol that is a semiautomatic firearm |
|---|---|
| SEM | (of firearms) capable of automatic loading and firing continuously |
| SEM | an autoloader that fires only one shot at each pull of the trigger |
| SEM | a pistol that is a semiautomatic firearm |
| SEM | a musical note having the longest time value |
| SEM | a plane figure with the shape of half a circle |
| SEM | curved into a half circle |
| SEM | a round arch drawn from a single center |
| SEM | one of three tube loops filled with fluid and in planes nearly at right angles with one another |
| SEM | a punctuation mark ( |
| SEM | a mild comatose state |
| SEM | in a state of partial coma |