IPA: /vʌlˈkænəˌlɒdʒi/
KK: /vʌlˈkænəˌlədʒi/
The scientific study of volcanoes, lava, magma, and related geological phenomena.
She decided to pursue a career in vulcanology to study the effects of volcanic eruptions on the environment.
Vulcanology is formed from "Vulcanus" (the Roman god of fire and volcanoes) and "-logy" (from Greek "logia", meaning study or discourse). The word refers to the study of volcanoes and volcanic phenomena, named after the god associated with fire.
Think of the Roman god of fire, Vulcan, and remember that vulcanology is the study of volcanoes and everything related to fire.