There are 14 words that start with 'hyal'.
| hyalin | hyaline |
| hyalins | hyalite |
| hyaloid | hyalines |
| hyalites | hyalogen |
| hyaloids | hyalogens |
| hyaloplasm | hyaloplasms |
| hyaluronidase | hyaluronidases |
Note: These 14 words that start with 'hyal' are found from the USA & Canada version of the tournament Scrabble word list.