There are 9 words that end with 'noidal'.
| conoidal | adenoidal |
| crinoidal | hypnoidal |
| quinoidal | paranoidal |
| solenoidal | sphenoidal |
| subarachnoidal | |
Note: These 9 words that end with 'noidal' are found from the USA & Canada version of the tournament Scrabble word list.