IPA: /ˌlaɪ.kə.nəˈlɒ.dʒɪ.kəl/
KK: /ˌlaɪkəˈnɑlədʒɪkəl/
Relating to the study of lichens, which are organisms made up of fungi and algae living together.
The lichenological research revealed new species in the forest.
Lichenological → It is formed from "lichen" (from Greek "lichenos", meaning a type of fungus that grows symbiotically with algae) and "-logical" (from Greek "logia", meaning study or science). The word "lichenological" refers to the study or science of lichens.
Think of 'lichen' as the organism being studied and '-logical' as relating to the study of it — that's why lichenological means the study of lichens.