There are 11 words that end with 'otrons'.
| biotrons | cryotrons | mesotrons |
| kenotrons | pliotrons | cyclotrons |
| cosmotrons | mellotrons | phytotrons |
| strobotrons | synchrotrons | |
Note: These 11 words that end with 'otrons' are found from the USA & Canada version of the tournament Scrabble word list.