a.[Z]

1. 伦理的，道德的；伦理学上的
   That is an ethical problem.

   那是个伦理问题。

2. 道德的；合乎道德的
   I won't do it; it's not ethical.

   我不会这么做；这不符合职业道德。

3. （药品）凭处方出售的

adj.

1. relating to moral principles or the branch of knowledge concerned with these.
   ▸morally correct.
2. (of a medicine) available only on prescription.