There are 12 words that start with 'cryop'.
| cryophyte | cryoprobe | 
| cryophilic | cryophytes | 
| cryoprobes | cryopreserve | 
| cryopreserved | cryopreserves | 
| cryopreserving | cryoprotectant | 
| cryoprotective | cryoprotectants | 
Note: These 12 words that start with 'cryop' are found from the USA & Canada version of the tournament Scrabble word list.