| Termen/ Term | Nr. apariții/ No. occurrences |
| SPONGIER TRIAXONID | 4 |
| SPORICI | 6 |
| STADII DE DEZVOLTARE EMBRIONARA | 2 |
| STANCUTA | 7 |
| STANCUTA ALPINA | 1 |
| STANCUTA ALPINA ASIATICA | 1 |
| STANCUTA APUSEANA | 6 |
| STATOLITE | 3 |
| STEA DE MARE | 115 |
| STEA-DE-MARE | 1 |
| STEJAR | 7 |
| STEJAREL | 1 |
| STELITA VINATA | 8 |
| STELUTA | 2 |
| STEVIE DE MUNTE | 3 |
| STICLETE | 10 |
| STICLETE MARE | 1 |
| STICLETE-DE-IARNA | 5 |
| STINISOARA | 2 |
| STINJENEI | 4 |
| STINJENEL | 4 |
| STINOSOARA | 1 |
| STIRC CENUSIU | 6 |
| STIRC DE NOAPTE | 3 |
| STIRC GALBEN | 11 |
| STIRC PITIC | 3 |
| STIRC ROSU | 8 |
| STIRC VINAT | 2 |
| STIRC-DE-NOAPTE | 1 |
| STIRIGOAIE | 1 |
| STIUCA DE MARE | 1 |
| STOMACUL LA VERTEBRATE | 1 |
| STOMATOPOD | 9 |
| STRIDIE | 17 |
| STRIDIE PERLIFERA | 2 |
| STRIDIE ROSIE | 1 |
| STRIGA | 3 |
| STRONGHIL | 2 |
| STRUGURII URSULUI | 4 |
| STRUT NANDU | 4 |
| STUDENITA | 2 |
| STUPITUL CUCULUI | 18 |
| STURZ AMERICAN | 1 |
| STURZ CENUSIU | 1 |
| STURZ CINTATOR | 7 |
| STURZ DE IARNA | 2 |
| STURZ-DE-IARNA | 11 |
| STURZ-DE-MUNTE | 16 |
| STURZ-DE-VII | 1 |
| STURZ-DE-VISC | 9 |