Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Tc  | |
|---|---|
| USE | technetium |
| Tc-99 | |
|---|---|
| BT | isotopes |
| .radioactive isotopes | |
| ..Tc-99 | |
| BT | metals |
| .technetium | |
| ..Tc-99 | |
| SN | This term has multiple hierarchies. |
| TCDD | |
|---|---|
| USE | dioxins |
| TCE | |
|---|---|
| SN | Not a valid term for GeoRef. See trichloroethylene or tetrachloroethylene. May also be used for trichloroethanol, and thermal coefficient of expansion. |
| Tchornozem | |
|---|---|
| USE | Chernozems |