Ex·plain v. t. [imp. & p. p. Explained p. pr. & vb. n. Explaining.]
  1. To flatten; to spread out; to unfold; to expand. [Obs.]
     The horse-chestnut is . . . ready to explain its leaf.   --Evelyn.
  2. To make plain, manifest, or intelligible; to clear of obscurity; to expound; to unfold and illustrate the meaning of; as, to explain a chapter of the Bible.
     Commentators to explain the difficult passages to you.   --Gay.
  To explain away, to get rid of by explanation. “Those explain the meaning quite away.”
  Syn: -- To expound; interpret; elucidate; clear up.