| Answer | Crossword Clue |
|---|---|
| OSTOSIS | Formation of bone |
| OSTOSIS | Process of bone formation |
| OSTOSIS | Bone formation |
| OSTOSIS | Bone formation. |
| OROGENY | The process of mountain formation |
| NEOCENE | Of a period of the earth's formation. |
| POLARCAP | Icy formation at either extremity of the Earth's axis |
| LOST | Oceanographers have discovered a mid-Atlantic formation of hot springs and spires dubbed "The .. City" |
