Mammoth Uncensored Word List:
28 - 18 letter words starting with ch

characteristically chemicophysiologic chemiluminescences chemoheterotrophal chemoheterotrophic chemoorganotrophal chemoorganotrophic chemoreceptivities chemosensitivities chemostratigrapher chemostratigraphic chemotherapeutical chickenheartedness chlorofluorocarbon chlortetracyclines cholangiocarcinoma cholecystectomized cholecystocolotomy cholecystographies chondrodystrophies chondrogenetically chromolithographed chromolithographer chromolithographic chronobiologically chronophotographic chronostratigraphy chronothermometers