IPA: /ˌtɛrɪdəˈlɒdʒɪkəl/
KK: /ˌtɛrɪdəˈlɒdʒɪkəl/
This word describes something that is connected to the study of ferns, which are a type of plant.
The pteridological research revealed new species of ferns in the rainforest.
Pteridological → It is formed from "pteridion" (from Greek πτερίς, meaning fern) and "-logy" (from Greek -λογία, meaning study of). The word refers to the study of ferns and related plants.
Think of 'pteridion' which means fern, and '-logy' which means study. This helps you remember that 'pteridological' is about the study of ferns.