n.

1. 伦理学，道德学[J]
   Ethics deals with moral conduct.

   伦理学研讨道德行为。

2. 伦理学著作（或论文）[J]
3. 伦理观；道德标准；（某种职业的）规矩[G]
   The ethics of his profession do not permit him to do that.

   他的职业道德不容许他那样做。

pl. n.

1. [usu. treated as pl.] the moral principles governing or influencing conduct.
2. [usu. treated as sing.] the branch of knowledge concerned with moral principles.