There are 10 words that end with 'comas'.
| comas | leucomas |
| narcomas | sarcomas |
| glaucomas | semicomas |
| fibrosarcomas | osteosarcomas |
| lymphosarcomas | carcinosarcomas |
Note: These 10 words that end with 'comas' are found from the USA & Canada version of the tournament Scrabble word list.