There are 12 words that start with 'ectop'.
| ectopia | ectopic |
| ectopias | ectoplasm |
| ectoproct | ectoplasms |
| ectoprocts | ectopically |
| ectoplasmic | ectoparasite |
| ectoparasites | ectoparasitic |
Note: These 12 words that start with 'ectop' are found from the USA & Canada version of the tournament Scrabble word list.