There are 9 words that start with 'cryopr'.
| cryoprobe | cryoprobes | 
| cryopreserve | cryopreserved | 
| cryopreserves | cryopreserving | 
| cryoprotectant | cryoprotective | 
| cryoprotectants | |
Note: These 9 words that start with 'cryopr' are found from the USA & Canada version of the tournament Scrabble word list.