There are 14 words that end with 'idial'.
| basidial | aecidial | conidial |
| gonidial | peridial | pygidial |
| presidial | pycnidial | miracidial |
| nephridial | plastidial | ommatidial |
| antheridial | clostridial | |
Note: These 14 words that end with 'idial' are found from the USA & Canada version of the tournament Scrabble word list.