There is 1 15-letter word that end with 'ctor'.
vasoconstrictor | |
Note: These 1 15-letter words that end with 'ctor' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with ector, actor, uctor, ictor, octor, nctor.
5-letter words end with 'ctor' (1)