acarology Syllabification: (ac·a·rol·o·gy)Pronunciation: /ˌakəˈräləjē/Definition of acarology noun the study of mites and ticks. Derivatives acarologistPronunciation: /-jist/ noun Origin: early 20th century: from Greek akari 'mite, tick' + -logyacarology in other Oxford dictionaries Definition of acarology in the British & World English dictionary