helminthology Syllabification: (hel·min·thol·o·gy)Pronunciation: /ˌhelmənˈTHäləjē/Definition of helminthology noun the study of parasitic worms. Derivatives helminthologicalPronunciation: /helˌminTHəˈläjikəl/ adjective helminthologistPronunciation: /-jist/ noun helminthology in other Oxford dictionaries Definition of helminthology in the British & World English dictionary