| Termen/ Term | Nr. apariții/ No. occurrences |
| COLTUL LUPULUI | 4 |
| COLTUNII POPII | 8 |
| CONDIL OCCIPITAL DREPT | 1 |
| CONDIL OCCIPITAL STING | 1 |
| CONDOR MARE ANDIN | 1 |
| COPRINE | 5 |
| COPRINE DE CIMP | 1 |
| CORAL | 2 |
| CORB | 24 |
| CORB DE MARE | 2 |
| CORB DE MARE ALB | 4 |
| CORCODE GIT-ROSU | 6 |
| CORCODEL | 7 |
| CORCODEL GIT NEGRU | 4 |
| CORCODEL GIT ROSU | 7 |
| CORCODEL GIT- NEGRU | 1 |
| CORCODEL GIT-NEGRU | 4 |
| CORCODEL GIT-ROSU | 2 |
| CORCODEL MARE | 28 |
| CORCODEL MIC | 20 |
| CORCODEL URECHIAT | 3 |
| CORCODUS | 2 |
| COREGON MIC | 2 |
| CORIANDRU | 1 |
| CORMORAN | 5 |
| CORMORAN MARE | 3 |
| CORMORAN MIC | 10 |
| CIRTITA CU PUNGA | 1 |
| CHIPMUNK | 1 |
| CU OU DE CROCODIL) | 1 |
| CACUANG | 1 |
| CAIRA | 2 |
| CAL | 43 |
| CAL FOSIL | 239 |
| CALCAN | 3 |
| CALCANEU DREPT | 1 |
| CALCANEU STING | 4 |
| CALCAR | 1 |
| CALCEDONIE CU CUART | 1 |
| CALCIT | 20 |
| CALCITA | 2 |
| CALCOPIRITA | 2 |
| CALDARUSA | 5 |
| CALFOSIL | 1 |
| CALIANASID | 1 |
| CALIFAR ALB | 5 |
| CALIFAR ROSU | 8 |
| CALIN | 12 |
| CALMAR | 6 |
| CALTUNUL DOAMNEI | 1 |