arcanum

名词 arcanum:

1. information known only to a special group
   同义词：secret

ar.ca.num

n.（名词）
【复数】 ar.ca.na[-n…] 或 ar.ca.nums
A deep secret; a mystery.
奥秘；神秘事物
Often arcana Specialized knowledge or detail that is mysterious to the average person:
常作 arcana 难懂的，艰深的知识：对普通人来说难懂的特殊知识或细节：
例句：
.knows the arcana of police procedure and the intricacies of litigation.(George F. Will)
.了解警方程序及诉讼复杂性的专门知识.(乔治F.威尔)

A secret essence or remedy; an elixir.
秘方：秘密的精髓或治疗法；万灵药

来源：
Latin [from neuter of] arc3nus [secret] * see arcane
拉丁语 [] 源自arc3nus的中性词 [秘密] *参见 arcane