| Answer | Crossword Clue |
|---|---|
| ANNULUS | Growth ring |
| LEI | Growth ring? |
| LAYER | Growth ring, e.g. |
| annuli | growth ring (as on the scale of a fish) that is used in estimating age |
| annulus | growth ring, as on the cross section of a tree trunk, that can be used to estimate age |
| annuli | growth ring, as on the cross section of a tree trunk, that can be used to estimate age |
