| Answer | Crossword Clue |
|---|---|
| occlusions | OCCLUSION, the closing of an opening, passage or cavity |
| occlusion | the closing of an opening, passage or cavity |
| atresia | the congenital absence, or the pathological closure, of an opening, passage, or cavity |
| atretic | the congenital absence, or the pathological closure, of an opening, passage, or cavity |
| atresic | the congenital absence, or the pathological closure, of an opening, passage, or cavity |
| atresias | the congenital absence, or the pathological closure, of an opening, passage, or cavity |
