vegetation
/ˌvedʒɪˈteɪʃən/noun
mass noun
1
- plants considered collectively, especially those found in a particular area or habitat植被（尤指某一地区植被）：
the chalk cliffs are mainly sheer with little vegetation.
白垩悬崖上光秃秃一片, 没有任何植物。
2
- the action or process of vegetating（植物的）生长。
派生词
vegetational
adjective词源
mid 16th cent. (in sense 2)： from medieval Latin vegetatio（n-） 'power of growth', from the verb vegetare （see VEGETATE）.