There are 11 words that start with 'cytos'.
| cytosol | cytosine |
| cytosols | cytosines |
| cytosolic | cytostatic |
| cytostatics | cytoskeletal |
| cytoskeleton | cytoskeletons |
| cytostatically | |
Note: These 11 words that start with 'cytos' are found from the USA & Canada version of the tournament Scrabble word list.