penumbral

a. 日月半影的, 界限不明的

释义与例句

adj.
  1. 1.

    Of, or pertaining to, the penumbra.

  2. 2.

    Implied or logically following from something, but not directly stated.

  3. 3.

    Connected to a term, but not essential to its meaning.

    法律 语言学

词源

From penumbra + -al.

来源：wiktionary