Learner's definition of GEOLOGY
[noncount]
1
: a science that studies rocks, layers of soil, etc., in order to learn about the history of the Earth and its life地质学
2
: the rocks, land, processes of land formation, etc., of a particular area（某地区的）地质情况 — geologic
(chiefly US) /ˌʤiːjəˈlɑːʤɪk/ or geological /ˌʤiːjəˈlɑːʤɪkəl/ adjective — geologically
/ˌʤiːjəˈlɑːʤɪkli/ adverb — geologist
/ʤiˈɑːləʤɪst/ noun, plural geologists [count]