multiplicity
/ˌmʌltɪˈplɪsətɪ/noun
(pl. -ies)
1- a large number许多, 大量：
his climbing record lists a multiplicity of ascents.
他的登山记录列出大量攀登活动。
1.1
- a large variety多种多样; 多样性：
the rainforests and the multiplicity of species which they harbour.
雨林和其蕴藏的种类繁多的物种。
词源
late Middle English: from late Latin multiplicitas, from Latin multiplex （see MULTIPLEX）.