There are 10 words that start with 'pyrox'.
| pyroxene | pyroxenes | pyroxenic |
| pyroxylin | pyroxenite | pyroxenoid |
| pyroxylins | pyroxenites | pyroxenitic |
| pyroxenoids | ||
Note: These 10 words that start with 'pyrox' are found from the USA & Canada version of the tournament Scrabble word list.