There are 11 15-letter words that end with 'gist'.
| biotechnologist | chronobiologist |
| cryptozoologist | endocrinologist |
| geochronologist | geomorphologist |
| roentgenologist | phenomenologist |
| sedimentologist | ophthalmologist |
| psychobiologist | |
Note: These 11 15-letter words that end with 'gist' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with ogist, agist, rgist, egist, ggist, lgist.
5-letter words end with 'gist' (1)