| Acronym | Definitions |
|---|---|
| RII | 2 |
| RIJ | 2 |
| RIL | 4 |
| RILS | 3 |
| RIM | 12 |
| rima | 1 |
| RIMC | 2 |
| RIMD | 2 |
| RIME | 2 |
| RIMS | 13 |
| RIN | 6 |
| RIND | 3 |
| RINT | 4 |
| RIO | 5 |
| RIOMETER | 1 |
| RIOSA | 2 |
| RIOT | 2 |
| RIP | 24 |
| RIPA | 5 |
| RIPE | 2 |
| RIPHH | 2 |
| RIPS | 7 |
| RIR | 9 |
| RIS | 21 |
| RISA | 5 |
| RISC | 5 |
| RISE | 3 |
| RISM | 1 |
| RISOP | 2 |
| RIST | 3 |
(541 — 570 of 1025)