| Cambrian Period | ยุคแคมเบรียน [ธรณีวิทยา๑๔ ม.ค. ๒๕๔๖] |
| cambrian |
| cambrian | (n) from 544 million to about 500 million years ago; marine invertebrates, Syn. Cambrian period |
| cambrian mountains | (n) a rugged plateau that runs north to south through central Wales |
| Cambrian | a. |
| Cambrian | n. |