Related topics: Illness & disability
et·i·ol·o·gy /ˌiːtiˈɒlədʒi, $ -ˈɑːlə-/ noun [countableC, uncountableU] → aetiologytechnicalMI the cause of a disease or the scientific study of this 病因(学),病原(学)
—etiological /ˌiːtiəˈlɒdʒɪkəl◂ $ -ˈlɑː-/ adjectiveadj
—etiologically /-kli/ adverbadv