| Answer | Crossword Clue |
|---|---|
| gnotobiosis | the rearing of organisms in a germfree environment |
| Answer | Crossword Clue |
|---|---|
| gnotobiosis | the rearing of organisms in a germfree environment |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.