There are 11 words that end with 'loidal'.
| keloidal | colloidal | 
| cycloidal | alkaloidal | 
| metalloidal | amygdaloidal | 
| epicycloidal | paraboloidal | 
| crystalloidal | hyperboloidal | 
| hydrocolloidal | |
Note: These 11 words that end with 'loidal' are found from the USA & Canada version of the tournament Scrabble word list.